Have you ever wondered whether you are truly saved? Most Christians have. But how can you know for sure? The letter of First John gives some answers. John presents three tests by which we can know that we know Christ: the test of belief in the person of Christ, the eternal God who came in the flesh; the test of obedience to Christ's commandments; and the test of genuine love for other believers. The apostle wrote so that we can apply these tests personally,...