My sanctification isn’t a question of whether God is willing to sanctify me. The question is, Am I willing? Am I willing to let God do in me all that has been made possible by the atonement? Am I willing to let the life of Jesus Christ manifest itself in my mortal flesh?

Beware of saying, “I’m longing to be sanctified.” Stop longing and treat it as a transaction, a simple matter of asking and receiving. Ask God for the Holy Spirit on the basis of Luke 11:13: “How much more will your Father in heaven give the Holy Spirit to those who ask him!” Then, in implicit faith, receive Jesus Christ to be made sanctification to you, and the great marvel of the atonement will be made real in you.

All that Jesus Christ made possible is mine because of one thing and one thing only: the free, loving gift of God. My attitude as a saved and sanctified soul must be one of profound, humble holiness. (There’s no such thing as proud holiness.) I recognize what Jesus has done for me with agonizing repentance and a sense of unspeakable shame and degradation. I have the amazing realization that even when I cared nothing for God, his love for me was so great that he completed everything for my salvation and sanctification.

No wonder Paul says that nothing “will be able to separate us from the love of God that is in Christ Jesus our Lord” (Romans 8:39). Sanctification makes me one with Jesus Christ, and in him one with God. This is done only through the atonement of Christ, which is the cause of my holiness. Never confuse the cause and the effect. My holiness and obedience and service and prayer are all effects—the outcome of speechless thanks and adoration for the sanctification worked in me by the atonement.

Wisdom from Oswald

There is no allowance whatever in the New Testament for the man who says he is saved by grace but who does not produce the graceful goods. Jesus Christ by His Redemption can make our actual life in keeping with our religious profession.
Studies in the Sermon on the Mount