For the LORD has chosen Jacob unto himself, and Israel for his peculiar treasure.
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Augustine of Hippo
5. "For the Lord hath chosen Jacob to Himself, Israel for His own possession" (ver. 4). ...Let not Jacob therefore extol himself, let him not boast himself, or ascribe it to his own merits. He was known before, predestinated before, elected before, not elected for his own merits, but found out, and gifted with life by the grace of God. So with all the Gentiles; for how did the wild-olive deserve, that it should be grafted in, from the bitterness of its berries, the barrenness of its wildness? It was the wood of the wilderness, not of the Lord's field, and yet He of His mercy grafted the wild-olive into the (true) olive. But up to this time the wild-olive was not grafted in. ...
Possession. Hebrew, "jewel ""property. "Chaldean, "well-beloved. "See Deuteronomy lii. 8., and Ecclesiasticus xvii. 14. (Calmet)
The first patriarchs corresponded with God's goodness: but their descendants were for the most part ungrateful: so that Christians have now entered into their place, and must praise God. (Berthier) ...