English summary: In this latest commentary on Philemon, Peter Muller offers a new approach to Paul's shortest letter. At first sight, the letter deals with an unimportant incident, a conflict between a slave and his master and Paul's mediation. Taking a closer look, Muller proves that it is a masterpiece of Christian ethics. The basic notions of the letter - faith, love, community - do not abide by abstract ideas, but take shape in the situation...