is an image used in the pericope of John 10:1-21, in which Jesus Christ is depicted as the Good Shepherd who lays down his life for the sheep. Similar imagery is used in Psalm 23. The Good Shepherd is also discussed in the other gospels, the Epistle to the Hebrews, the First Epistle of Peter and the Book of Revelation in references to Jesus not letting himself lose any of his sheep.