Skip to content
Menu Button
Scan a barcode
Scan
My Lists
Scan a barcode
Scan
Sell your books for cash or store credit, and shipping is free! Try ThriftBooks BuyBack →

Christology

Explore More

Agnosticism
Ancient History Books
Apologetics
Biblical Commentary
Biblical History
Biblical Interpretation
Biblical Prophecy
Biblical Studies
Catholicism
Christian Ethics
Christian Faith
Christian Life
Christian Living
Christian Spirituality
Christian Theology
Christianity
Church History
Comparative Religion
Contemporary Christian
Cultural Anthropology
Cultural Significance
Demonology
Discipleship
Early Christianity
Ecclesiology
End Times
End Times Prophecy
Eschatology
Evangelism
Gnosticism
Heaven And Hell
Hermeneutics
Historical Context
Interfaith Dialogue
Interfaith Relations
Judaism
Mysticism
New Testament Studies
Old Testament
Old Testament Studies
Paganism
Protestantism
Religion
Religion And Politics
Religions
Religious Faith
Religious History Books
Religious Pluralism
Religious Studies
Roman Empire
Sacraments
Salvation Theory
Soteriology
Spiritualism
Spirituality
Taoism
The Catholic Church
The New Testament
The Second Coming of Christ
Theology
Theosophy

Explore More

Agnosticism
Ancient History Books
Apologetics
Biblical Commentary
Biblical History
Biblical Interpretation
Biblical Prophecy
Biblical Studies
Catholicism
Christian Ethics
Christian Faith
Christian Life
Christian Living
Christian Spirituality
Christian Theology
Christianity
Church History
Comparative Religion
Contemporary Christian
Cultural Anthropology
Cultural Significance
Demonology
Discipleship
Early Christianity
Ecclesiology
End Times
End Times Prophecy
Eschatology
Evangelism
Gnosticism
Heaven And Hell
Hermeneutics
Historical Context
Interfaith Dialogue
Interfaith Relations
Judaism
Mysticism
New Testament Studies
Old Testament
Old Testament Studies
Paganism
Protestantism
Religion
Religion And Politics
Religions
Religious Faith
Religious History Books
Religious Pluralism
Religious Studies
Roman Empire
Sacraments
Salvation Theory
Soteriology
Spiritualism
Spirituality
Taoism
The Catholic Church
The New Testament
The Second Coming of Christ
Theology
Theosophy

Top Picks

Knowing Jesus Through the Old Testament
Knowing Jesus Through the Old Testament
Christopher J.H. Wright

from $5.09

The Point of Christology
The Point of Christology
Schubert M. Ogden

from $5.79

Christology: A Biblical, Historical and Systematic Study of Jesus Christ
Christology: A Biblical, Historical and Systematic Study of Jesus Christ
Gerald O'Collins

from $5.49

A Passion for Christ: An Evangelical Christology
A Passion for Christ: An Evangelical Christology
Douglas D. Webster

from $9.29

Wer ist und wer war Jesus Christus?
Wer ist und wer war Jesus Christus?
Dietrich Bonhoeffer

from $8.29

Jesus Christ: Fundamentals of Christology
Jesus Christ: Fundamentals of Christology
Roch A. Kereszty

from $16.29

Cracking the Symbol Code: Revealing the Secret Heretical Messages within Church and Renaissance Art
Cracking the Symbol Code: Revealing the Secret Heretical Messages within Church and Renaissance Art
Tim Wallace-Murphy

from $5.09

The Jesus Conspiracy: An Investigative Reporter's Look at an Extraordinary Life and Death
The Jesus Conspiracy: An Investigative Reporter's Look at an Extraordinary Life and Death
Gordon Thomas

from $5.09

The Complete Idiot's Guide to Jesus
The Complete Idiot's Guide to Jesus
James Stuart Bell Jr.

from $6.39

The Incomparable Christ
The Incomparable Christ
John R.W. Stott

from $6.79

Bestsellers

Killing Jesus: A History
Killing Jesus: A History
Bill O'Reilly

from $5.09

The Sermon on the Mount - Reissue: The Key to Success in Life
The Sermon on the Mount - Reissue: The Key to Success in Life
Emmet Fox

from $4.89

The Lamb's Supper: The Mass as Heaven on Earth
The Lamb's Supper: The Mass as Heaven on Earth
Scott Hahn

from $8.69

Traité de la vraie dévotion à la Sainte Vierge
Traité de la vraie dévotion à la Sainte Vierge
Louis de Montfort

from $4.69

Zealot: The Life and Times of Jesus of Nazareth
Zealot: The Life and Times of Jesus of Nazareth
Reza Aslan

from $4.19

Beautiful Outlaw: Experiencing the Playful, Disruptive, Extravagant Personality of Jesus
Beautiful Outlaw: Experiencing the Playful, Disruptive, Extravagant Personality of Jesus
John Eldredge

from $4.49

Jesus von Nazareth. Erster Teil. Von der Taufe im Jordan bis zur Verklärung
Jesus von Nazareth. Erster Teil. Von der Taufe im Jordan bis zur Verklärung
Pope Benedict XVI

from $5.59

The Universal Christ
The Universal Christ
Richard Rohr

from $7.49

King's Cross: The Story of the World in the Life of Jesus
King's Cross: The Story of the World in the Life of Jesus
Timothy J. Keller

from $5.09

De Incarnatione Verbi Dei
De Incarnatione Verbi Dei
Athanasius of Alexandria

from $8.78

Christology

The Templar Revelation: Secret Guardians of the True Identity of Christ
The Templar Revelation: Secret Guardians of the True Identity of Christ
Clive Prince

from $4.79

Think Like Jesus: Make the Right Decision Every Time
Think Like Jesus: Make the Right Decision Every Time
George Barna

from $4.69

Evidence for the Resurrection
Evidence for the Resurrection
Sean McDowell

from $4.69

Next Door Savior: Near Enough to Touch, Strong Enough to Trust
Next Door Savior: Near Enough to Touch, Strong Enough to Trust
Max Lucado

from $4.79

Selected Writings
Selected Writings
Thomas Aquinas

from $7.29

The Lost Years of Jesus: Documentary Evidence of Jesus' 17-Year Journey to the East
The Lost Years of Jesus: Documentary Evidence of Jesus' 17-Year Journey to the East
Elizabeth Clare Prophet

from $4.59

American Jesus: How the Son of God Became a National Icon
American Jesus: How the Son of God Became a National Icon
Stephen Prothero

from $4.99

The Marian Conspiracy: The Hidden Truth About the Holy Grail, the Real Father of Christ and the Tomb of the Virgin Mary
The Marian Conspiracy: The Hidden Truth About the Holy Grail, the Real Father of Christ and the Tomb of the Virgin Mary
Graham Phillips

from $4.29

The New Being
The New Being
Paul Tillich

from $5.69

Hitlers Cross
Hitlers Cross
Erwin W. Lutzer

from $8.89

Paul for Everyone: The Prison Letters : Ephesians, Philippians, Colossians, Philemon (For Everyone)
Paul for Everyone: The Prison Letters : Ephesians, Philippians, Colossians, Philemon (For Everyone)
Tom Wright

from $6.69

The Way to Christ: Spiritual Exercises
The Way to Christ: Spiritual Exercises
Pope John Paul II

from $4.29

The Jesus Family Tomb
The Jesus Family Tomb
Simcha Jacobovici

from $4.19

Echoes from Calvary: Meditations on Franz Joseph Hayden's The Seven Last Words of Christ
Echoes from Calvary: Meditations on Franz Joseph Hayden's The Seven Last Words of Christ
Richard Young

from $6.59

Jesus. A 21st Century Biography
Jesus. A 21st Century Biography
Paul Johnson

from $5.09

The Magdalene Legacy: The Jesus and Mary Bloodline Conspiracy - Revelations Beyond "The Da Vinci Code"
The Magdalene Legacy: The Jesus and Mary Bloodline Conspiracy - Revelations Beyond "The Da Vinci Code"
Laurence Gardner

from $6.79

Alone of all Her Sex: The Myth and Cult of the Virgin Mary
Alone of all Her Sex: The Myth and Cult of the Virgin Mary
Marina Warner

from $4.39

The Orthodox Corruption of Scripture: The Effect of Early Christological Controversies on the Text of the New Testament
The Orthodox Corruption of Scripture: The Effect of Early Christological Controversies on the Text of the New Testament
Bart D. Ehrman

from $62.08

The Man Nobody Knows
The Man Nobody Knows
Bruce Barton

from $5.09

The Apocryphal Gospels of Mary in Anglo-Saxon England
The Apocryphal Gospels of Mary in Anglo-Saxon England
Mary Clayton

from $34.99

Christian Books & Bibles

God's Big Picture: Tracing the Storyline of the Bible
God's Big Picture: Tracing the Storyline of the Bible
Vaughan Roberts

from $6.89

Ignatius Catholic Study Bible: New Testament
Ignatius Catholic Study Bible: New Testament
Curtis Mitch

from $13.29

The New Testament: An Expanded Translation
The New Testament: An Expanded Translation
Kenneth S. Wuest

from $6.59

God Came Near (Lucado, Max)
God Came Near (Lucado, Max)
Max Lucado

from $4.19

The Case for Easter: Journalist Investigates the Evidence for the Resurrection
The Case for Easter: Journalist Investigates the Evidence for the Resurrection
Lee Strobel

from $4.19

Seeing and Savoring Jesus Christ
Seeing and Savoring Jesus Christ
John Piper

from $4.19

The Easter Story
The Easter Story
Brian Wildsmith

from $4.59

Gospel of the Kingdom
Gospel of the Kingdom
George Eldon Ladd

from $6.09

Spiritual Discipleship (Commitment To Spiritual Growth)
Spiritual Discipleship (Commitment To Spiritual Growth)
J. Oswald Sanders

from $5.49

The Murder of Jesus
The Murder of Jesus
John F. MacArthur Jr.

from $4.99

The Gospel in a Pluralist Society
The Gospel in a Pluralist Society
Lesslie Newbigin

from $7.39

A Survey of Bible Doctrine
A Survey of Bible Doctrine
Charles C. Ryrie

from $4.59

Who Is This Man? Study Guide with DVD: The Unpredictable Impact of the Inescapable Jesus
Who Is This Man? Study Guide with DVD: The Unpredictable Impact of the Inescapable Jesus
John Ortberg

from $4.19

Faith Seeking Understanding: An Introduction to Christian Theology
Faith Seeking Understanding: An Introduction to Christian Theology
Daniel L. Migliore

from $4.09

Systematic Theology
Systematic Theology
Louis Berkhof

from $17.79

How God Became King: The Forgotten Story of the Gospels
How God Became King: The Forgotten Story of the Gospels
N.T. Wright

from $8.89

Christ of The Covenants
Christ of The Covenants
O. Palmer Robertson

from $9.39

The Mystical Life of Jesus: An Uncommon Perspective on the Life of Christ
The Mystical Life of Jesus: An Uncommon Perspective on the Life of Christ
Sylvia Browne

from $4.19

Evangelical Dictionary of Theology, (Baker Reference Library)
Evangelical Dictionary of Theology, (Baker Reference Library)
Walter A. Elwell

from $9.99

A Theology of the New Testament
A Theology of the New Testament
George Eldon Ladd

from $6.19

New Testament

Did Jesus Exist? The Historical Argument for Jesus of Nazareth
Did Jesus Exist? The Historical Argument for Jesus of Nazareth
Bart D. Ehrman

from $8.49

The Hidden Gospel: Decoding the Spiritual Message of the Aramaic Jesus
The Hidden Gospel: Decoding the Spiritual Message of the Aramaic Jesus
Neil Douglas-Klotz

from $11.59

Tyndale New Testament Commentaries: Letter to the Hebrews
Tyndale New Testament Commentaries: Letter to the Hebrews
Donald Guthrie

from $3.99

Jesus: Apocalyptic Prophet of the New Millennium
Jesus: Apocalyptic Prophet of the New Millennium
Bart D. Ehrman

from $9.49

Paul for Everyone: Galatians and Thessalonians (For Everyone)
Paul for Everyone: Galatians and Thessalonians (For Everyone)
N.T. Wright

from $7.69

Pistis Sophia
Pistis Sophia
G.R.S. Mead

from $12.39

The Epistles of Paul to the Colossians and Philemon
The Epistles of Paul to the Colossians and Philemon
N.T. Wright

from $5.39

The Power of Parable: How Fiction by Jesus Became Fiction about Jesus
The Power of Parable: How Fiction by Jesus Became Fiction about Jesus
John Dominic Crossan

from $5.19

Colossians and Philemon: New Testament Commentary (MacArthur New Testament Commentary Serie)
Colossians and Philemon: New Testament Commentary (MacArthur New Testament Commentary Serie)
John F. MacArthur Jr.

from $6.19

Jesus: A Theography
Jesus: A Theography
Frank Viola

from $9.09

The Gospel According to Mark (Tyndale New Testament Commentaries)
The Gospel According to Mark (Tyndale New Testament Commentaries)
R. Alan Cole

from $7.39

The Navarre Bible: St. Matthew (The Navarre Bible: New Testament)
The Navarre Bible: St. Matthew (The Navarre Bible: New Testament)
University of Navarra

from $6.39

New International Biblical Commentary: Philippians
New International Biblical Commentary: Philippians
F.F. Bruce

from $7.89

The Second Epistle General Of Peter And The General Epistle Of Jude: An Introduction and Commentary (Tyndale New Testament Commentaries)
The Second Epistle General Of Peter And The General Epistle Of Jude: An Introduction and Commentary (Tyndale New Testament Commentaries)
Michael Green

from $4.79

Jesus and the Victory of God (Christian Origins and the Question of God, Volume 2)
Jesus and the Victory of God (Christian Origins and the Question of God, Volume 2)
N.T. Wright

from $19.89

Commentary on the Gospel According to John
Commentary on the Gospel According to John
John Calvin

from $6.99

Philippians
Philippians
Gerald F. Hawthorne

from $6.59

The Jesus Story: Everything That Happens in the New Testament in Plain English
The Jesus Story: Everything That Happens in the New Testament in Plain English
William H. Marty

from $5.39

Introducing the New Testament: Its Literature and Theology
Introducing the New Testament: Its Literature and Theology
Joel B. Green

from $9.09

The Death of the Messiah
The Death of the Messiah
Raymond E. Brown

from $11.99

Religion

The Forgotten Trinity: Recovering the Heart of Christian Belief
The Forgotten Trinity: Recovering the Heart of Christian Belief
James R. White

from $9.39

Quest for the Living God: Mapping Frontiers in the Theology of God
Quest for the Living God: Mapping Frontiers in the Theology of God
Elizabeth A. Johnson

from $5.39

Christless Christianity: The Alternative Gospel of the American Church
Christless Christianity: The Alternative Gospel of the American Church
Michael S. Horton

from $17.00

The Power of the Cross of Christ (Life of Christ Series)
The Power of the Cross of Christ (Life of Christ Series)
Charles Haddon Spurgeon

from $6.69

Yeshua : The Name of Jesus Revealed in the Old Testament
Yeshua : The Name of Jesus Revealed in the Old Testament
Yacov Rambsel

from $5.69

In the Fullness of Time: A Historian Looks at Christmas, Easter and the Early Church
In the Fullness of Time: A Historian Looks at Christmas, Easter and the Early Church
Paul L. Maier

from $5.09

The Story of Christmas
The Story of Christmas
Jane E. Ray

Out of Stock

Putting Amazing Back into Grace: Embracing the Heart of the Gospel
Putting Amazing Back into Grace: Embracing the Heart of the Gospel
Michael S. Horton

from $5.39

Four Portraits, One Jesus: An Introduction to Jesus And the Gospels
Four Portraits, One Jesus: An Introduction to Jesus And the Gospels
Mark L. Strauss

from $11.09

Catechismus oder christlicher Vnderricht, wie der in Kirchen vnd Schulen der Churfürstlichen Pfaltz getrieben wirdt
Catechismus oder christlicher Vnderricht, wie der in Kirchen vnd Schulen der Churfürstlichen Pfaltz getrieben wirdt
Zacharias Ursinus

from $4.89

Experiencing the Presence of God: Teachings From the Book of Hebrews
Experiencing the Presence of God: Teachings From the Book of Hebrews
A.W. Tozer

from $8.39

Visual Theology: Seeing and Understanding the Truth About God
Visual Theology: Seeing and Understanding the Truth About God
Tim Challies

from $6.39

The Epistle to the Hebrews (The New International Commentary on the New Testament)
The Epistle to the Hebrews (The New International Commentary on the New Testament)
F.F. Bruce

from $7.39

According to Plan: The Unfolding Revelation of God in the Bible
According to Plan: The Unfolding Revelation of God in the Bible
Graeme Goldsworthy

from $7.39

Chemistry of the Blood
Chemistry of the Blood
Martin R. Dehaan

from $7.99

The Two Marys: The Hidden History of the Mother and Wife of Jesus
The Two Marys: The Hidden History of the Mother and Wife of Jesus
Sylvia Browne

from $4.19

Evanghelia (the Gospel) (Romanian): How the Church Portrays the Beauty of Christ
Evanghelia (the Gospel) (Romanian): How the Church Portrays the Beauty of Christ
Raymond C. Ortlund Jr.

from $4.99

Der gekreuzigte Gott
Der gekreuzigte Gott
Jürgen Moltmann

from $9.19

Name above All Names
Name above All Names
Sinclair B. Ferguson

from $4.59

Our Lady of Guadalupe: Mother of the Civilization of Love
Our Lady of Guadalupe: Mother of the Civilization of Love
Padre Eduardo Chavez

from $12.68

Religion & Spirituality

The Family of Jesus
The Family of Jesus
Karen Kingsbury

from $4.59

Encounters with Jesus: Unexpected Answers to Life's Biggest Questions
Encounters with Jesus: Unexpected Answers to Life's Biggest Questions
Timothy J. Keller

from $7.29

Christ-Centered Preaching,: Redeeming the Expository Sermon
Christ-Centered Preaching,: Redeeming the Expository Sermon
Bryan Chapell

from $8.69

Jesus on Trial: A Lawyer Affirms the Truth of the Gospel
Jesus on Trial: A Lawyer Affirms the Truth of the Gospel
David Limbaugh

from $4.49

The Women of Christmas: Experience the Season Afresh with Elizabeth, Mary, and Anna
The Women of Christmas: Experience the Season Afresh with Elizabeth, Mary, and Anna
Liz Curtis Higgs

from $5.99

Jesus von Nazareth. Prolog - Die Kindheitsgeschichten
Jesus von Nazareth. Prolog - Die Kindheitsgeschichten
Pope Benedict XVI

from $12.39

Joy to the World: How Christ's Coming Changed Everything (and Still Does)
Joy to the World: How Christ's Coming Changed Everything (and Still Does)
Scott Hahn

from $3.59

The Wisdom of God 10-Pack (A 10-week Bible Study): Seeing Jesus in the Psalms and Wisdom Books
The Wisdom of God 10-Pack (A 10-week Bible Study): Seeing Jesus in the Psalms and Wisdom Books
Nancy Guthrie

from $6.59

St. Thomas Aquinas Summa Theologica (5 volume set)
St. Thomas Aquinas Summa Theologica (5 volume set)
Thomas Aquinas

from $22.95

The Lamb of God 10-Pack (A 10-week Bible Study): Seeing Jesus in Exodus, Leviticus, Numbers, and Deuteronomy
The Lamb of God 10-Pack (A 10-week Bible Study): Seeing Jesus in Exodus, Leviticus, Numbers, and Deuteronomy
Nancy Guthrie

from $6.19

The Apologetics Study Bible
The Apologetics Study Bible
Anonymous

from $21.39

The Mosaic of Christian Beliefs: Twenty Centuries of Unity & Diversity
The Mosaic of Christian Beliefs: Twenty Centuries of Unity & Diversity
Roger E. Olson

from $4.59

Early Christian Fathers
Early Christian Fathers
Cyril Richardson

from $5.39

The Two Covenants
The Two Covenants
Andrew Murray

from $4.99

The Coming of the Cosmic Christ
The Coming of the Cosmic Christ
Matthew Fox

from $4.49

The Utter Relief of Holiness
The Utter Relief of Holiness
John Eldredge

from $4.49

Early Christian Doctrines
Early Christian Doctrines
J.N.D. Kelly

from $12.89

The Christian Theology Reader
The Christian Theology Reader
Alister E. McGrath

from $5.09

Resurrecting Jesus: Embodying the Spirit of a Revolutionary Mystic
Resurrecting Jesus: Embodying the Spirit of a Revolutionary Mystic
Adyashanti

from $6.79

The Apostolic Fathers
The Apostolic Fathers
Clement of Rome

from $8.19

Theology

The Case for the Real Jesus: A Journalist Investigates Current Attacks on the Identity of Christ
The Case for the Real Jesus: A Journalist Investigates Current Attacks on the Identity of Christ
Lee Strobel

from $5.09

Just Like Jesus: A Heart Like His
Just Like Jesus: A Heart Like His
Max Lucado

from $4.19

Hail, Holy Queen: The Mother of God in the Word of God
Hail, Holy Queen: The Mother of God in the Word of God
Scott Hahn

from $14.20

The Cross of Christ
The Cross of Christ
John R.W. Stott

from $6.39

Meeting Jesus Again for the First Time: The Historical Jesus and the Heart of Contemporary Faith
Meeting Jesus Again for the First Time: The Historical Jesus and the Heart of Contemporary Faith
Marcus J. Borg

from $4.19

Jesus and the Jewish Roots of the Eucharist: Unlocking the Secrets to the Last Supper
Jesus and the Jewish Roots of the Eucharist: Unlocking the Secrets to the Last Supper
Brant Pitre

from $13.49

Basic Theology: A Popular Systematic Guide to Understanding Biblical Truth
Basic Theology: A Popular Systematic Guide to Understanding Biblical Truth
Charles C. Ryrie

from $7.89

The Life and Times of Jesus Messiah: New Updated Edition
The Life and Times of Jesus Messiah: New Updated Edition
Alfred Edersheim

from $7.49

Christian Theology: An Introduction
Christian Theology: An Introduction
Alister E. McGrath

from $6.89

The Challenge of Jesus: Rediscovering Who Jesus Was and Is
The Challenge of Jesus: Rediscovering Who Jesus Was and Is
N.T. Wright

from $5.09

Unger's Bible Handbook
Unger's Bible Handbook
Merrill F. Unger

from $5.09

Anonymous: Jesus' hidden years ... and yours
Anonymous: Jesus' hidden years ... and yours
Alicia Britt Chole

from $7.19

The Passion of Jesus Christ
The Passion of Jesus Christ
John Piper

from $4.49

Moody Handbook of Theology
Moody Handbook of Theology
Paul P. Enns

from $9.69

The Gospel Of John: V. 1
The Gospel Of John: V. 1
William Barclay

from $5.29

The World's First Love: A Moving and Eloquent Portrayal of Mary, Mother of God
The World's First Love: A Moving and Eloquent Portrayal of Mary, Mother of God
Fulton J. Sheen

from $10.09

When Jesus Became God: The Epic Fight over Christ's Divinity in the Last Days of Rome
When Jesus Became God: The Epic Fight over Christ's Divinity in the Last Days of Rome
Richard E. Rubenstein

from $5.09

How Jesus Became God: The Exaltation of a Jewish Preacher from Galilee
How Jesus Became God: The Exaltation of a Jewish Preacher from Galilee
Bart D. Ehrman

from $8.99

The Jesus Way: A Conversation on the Ways That Jesus Is the Way
The Jesus Way: A Conversation on the Ways That Jesus Is the Way
Eugene H. Peterson

from $6.09

Jesus for the Non-Religious
Jesus for the Non-Religious
John Shelby Spong

from $4.19

Commonalities among the books on Christology include: - Exploration of the life, teachings, and significance of Jesus Christ - Theological reflections on the nature and identity of Jesus - Historical analysis of the context in which Jesus lived and his impact on history - Biblical studies that connect Old Testament prophecies to Jesus - Commentary on New Testament books - Reflections on Christian theology, doctrines, and beliefs - Spiritual exercises, devotionals, and guides for growth in faith - Investigation into controversies surrounding Jesus' identity and teachings

Trustpilot

Popular Categories

Website

My Account

Partnerships

Quick Help

About Us

ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.

Follow Us

Link to Facebook
Link to Twitter
Link to Pinterest
Link to Tumblr
Link to Instagram
Copyright © 2024 Thriftbooks.com Terms of Use | Privacy Policy | Do Not Sell/Share My Personal Information | Cookie Policy | Cookie Preferences | Accessibility Statement
ThriftBooks® and the ThriftBooks® logo are registered trademarks of Thrift Books Global, LLC
GoDaddy Verified and Secured