1 Peter 2:24

his own self--there being none other but Himself who could have done it. His voluntary undertaking of the work of redemption is implied. The Greek puts in antithetical juxtaposition, OUR, and His OWN SELF, to mark the idea of His substitution for us. His "well-doing" in His sufferings is set forth here as an example to servants and to us all (Pe1 2:20). bare--to sacrifice: carried and offered up: a sacrificial term. Isa 53:11-12, "He bare the sin of many": where the idea of bearing on Himself is the prominent one; here the offering in sacrifice is combined with that idea. So the same Greek means in Pe1 2:5. our sins--In offering or presenting in sacrifice (as the Greek for "bare" implies) His body, Christ offered in it the guilt of our sins upon the cross, as upon the altar of God, that it might be expiated in Him, and so taken away from us. Compare Isa 53:10, "Thou shalt make His soul an offering for sin." Peter thus means by "bare" what the Syriac takes two words to express, to bear and to offer: (1) He hath borne our sins laid upon Him [namely, their guilt, curse, and punishment]; (2) He hath so borne them that He offered them along with Himself on the altar. He refers to the animals upon which sins were first laid, and which were then offered thus laden [VITRINGA].

— Jamieson-Fausset-Brown Commentary (public domain)