John the Apostle
John 10:11ESV·traditional attribution

I am the good shepherd. The good shepherd lays down his life for the sheep.

John Calvin Reformed @genevareformer

11. The good shepherd giveth his life for the sheep. From the extraordinary affection which he bears towards the sheep, he shows how truly he acts towards them as a shepherd; for he is so anxious about their salvation, that he does not even spare his own life.

Matthew Henry Presbyterian @wholebiblehenry

It is not certain whether this discourse was at the feast of dedication in the winter (spoken of Joh 10:22), which may be taken as the date, not only of what follows, but of what goes before (that which countenances this is, that Christ, in his discourse there, carries on the metaphor of the sheep, Joh 10:26, Joh 10:27, whence it seems that that discourse...

Commenting on John 10:1-18

John Gill Reformed Baptist @doctorgill

I am the good shepherd,.... A shepherd of his Father's appointing, calling, and sending, to whom the care of all his sheep, or chosen ones, was committed; who was set up as a shepherd over them by him, and was entrusted with them; and who being called, undertook to feed them; and being promised, was sent unto the lost sheep of the house of Israel...