2 Corinthians 4:15
4:15 For all these things are for your sake, so that the grace that is including more and more people may cause thanksgiving to increase to the glory of God.
2 Corinthians 7:1
Self-Purification
7:1 Therefore, since we have these promises, dear friends, let us cleanse ourselves from everything that could defile the body and the spirit, and thus accomplish holiness out of reverence for God.
2 Corinthians 9:3
9:3 But I am sending these brothers so that our boasting about you may not be empty in this case, so that you may be ready just as I kept telling them.