A.T. Robertson Commentary Romans 11:29

"For the gifts and the calling of God are not repented of." — Romans 11:29 (ASV)

Without repentance (αμεταμελητα). See on 2 Corinthians 7:10 for this word (α privative and μεταμελομα, to be sorry afterwards). It is not αμετανοητον (Romans 2:5) from α privative and μετανοεω, to change one's mind. God is not sorry for his gifts to and calling of the Jews (9:4f.).