We may speak of believers as those who are sanctified by God the Father, that is to say, they are set apart. They were set apart before they were created, they were legally set apart by the purchase of Christ, and they are manifestly and visibly set apart by the effectual calling of the Spirit of divine grace. They are, I say, in this sense, at all periods sanctified. And speaking of the work as it concerns God the Father, they are completely sanctified unto the Lord forever.1
Charles H. Spurgeon
2 et qui sont élus selon la prescience de Dieu le Père, par la sanctification de l'Esprit, afin qu'ils deviennent obéissants, et qu'ils participent à l'aspersion du sang de Jésus-Christ: Que la grâce et la paix vous soient multipliées!