Ephesians 3:9 - Coke's Commentary on the Holy Bible

Which—hath been hid in God,— It is evident that here is an allusion to the burying of a treasure in some secret place; (comp. Matthew 13:44 where the same word is used;) as there may also be in the word ανεξιχνιαστον, unsearchable, Ephesians 3:8 which properly signifies, what cannot be traced out; and it is certain, that, though something is now known concerning this glorious mystery, yet there is an incomparablygreater part, concerning which we only know in the general that it is a rich treasure, without particularly knowing either what or how much it is. Mr. Locke, in an elaborate note, pleads, as Diodati has done before him, that the latter clause of this verse refers not to the creation of the world, but to the renovation of it; (see ch. Ephesians 2:10.) and so may be considered as an intimation, that the Father always intended that the Son should have the honour of forming all things anew; and therefore concealed the mystery till after Christ was come. But the words, if taken in the most extensive sense, contain both a certain and a pertinent truth.