Good Shepherd – The Good Shepherd (Greek: ποιμήν ο καλός, poimḗn o kalós) 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 (His) 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.

Good Shepherd – Wikipedia

https://en.wikipedia.org/wiki/Good_Shepherd

The Good Shepherd (Greek: ποιμήν ο καλός, poimḗn o kalós) 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 (His) 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.