John Calvin Commentary Ephesians 1:12

"to the end that we should be unto the praise of his glory, we who had before hoped in Christ:" — Ephesians 1:12 (ASV)

That we should be to the praise of his glory. Here again he mentions the final cause of salvation; for we must eventually become illustrations of the glory of God, if we are nothing but vessels of his mercy. The word glory, preeminently (κατ’ ἐξοχήν), denotes, in a distinctive way, that which shines in the goodness of God; for there is nothing that is more distinctively his own, or in which he desires more to be glorified, than goodness.