“That we should be to the praise of his glory, who first trusted in Christ.”
King James Version (KJV)
1:12 That we - Jews. Who first believed - Before the gentiles. So did some of them in every place. Here is another branch of the true gospel predestination: he that believes is not only elected to salvation, (if he endures to the end,) but is fore - appointed of God to walk in holiness, to the praise of his glory.
Eph 1:12 We should be to the praise of his glory. This is the final result of our predestination and adoption. Who first trusted in Christ. "We who had before hoped in Christ" (Revised Version). Jewish believers like Paul who had the Christian hope before the Gentiles.