Sermon excerpt from John Calvin, Sermons on the Epistle to the Ephesians. (London; Carlisle: Banner of Truth Trust, 1973), pp.32-33:
How then do we come to God? How do we obey him? How do we have a quiet mind that yields itself in accordance with faith? All these things come from him, and so it follows that he must do all himself. Wherefore let us observe that in saying God elected us before the creation of the world, St. Paul presupposes that which is true, namely, that God could not see anything in us save the evil that was there, for there was not one drop of goodness for him to find. So then, seeing he has elected us, regard it as a very clear token of his free grace…
He confirms the thing in better fashion still by saying that the same was done in Jesus Christ. If we had been elected in ourselves it might be said that God had found in us some secret virtue unknown to men. But seeing that he has elected us outside of ourselves, that is to say, loved us outside of ourselves, what shall we reply to that? If I do a man good, it is because I love him. And if the cause of my love is sought, it will be because we are alike in character, or else for some other good reason.
But we must not imagine anything similar to this in God. And also it is expressly told us here, for St. Paul says that we have been elected in Jesus Christ. Did God, then, have an eye to us when he vouchsafed to love us? No! No! for then he would have utterly abhorred us. It is true that in regarding our miseries he had pity and compassion on us to relieve us, but that was because he had already loved us in our Lord Jesus Christ. God, then, must have had before him his pattern and mirror in which to see us, that is to say, he must have first looked on our Lord Jesus Christ before he could choose and call us.
And so, to be brief, after St. Paul had showed that we could not bring anything to God, but that he acted beforehand of his own free grace in electing us before the creation of the world, he adds an even more certain proof, namely, that he did it in our Lord Jesus Christ, who is, as it were, the true register. For God’s vouchsafing to elect us, that is to say, his vouchsafing to do it from all eternity, was, as it were, a registering of us in writing. And the holy Scripture calls God’s election the book of life. As I said before, Jesus Christ serves as a register. It is in him that we are written down and acknowledged by God as his children. Seeing, then, that God had an eye to us in the person of Jesus Christ, it follows that he did not find anything in us which we might lay before him to cause him to elect us. This, in sum, is what we must always remember.