By the grace of God the believer has been set from from something and free for something. Grace is not just something that changes the broken relationship between God and sinners, something external. It changes the sinner, something internal. We call this truth the doctrine of sanctification by grace through faith. It is meant to be experienced, not just believed.
Grace includes functional salvation.
It is dangerous to theology, and to Christian living as well, to separate justification and sanctification as though they were mutually exclusive. We perform such a separation when we accuse a preacher of legalism when he calls for obedient discipleship on the part of God's redeemed people. Dietrich Bonhoeffer understood the importance for doctrine, preaching, and discipleship of the interconnectedness of justification and sanctification. God's people are to be busy. We are not to indulge in ease or resistance to exertion.