2 Corinthians 1:11-12

11You also are helping by your prayer for us, so that from many people thanks may be given on our behalf for the gracious gift given us through the help of many.

12For our reason for boasting is this: the testimony of our conscience, that we behaved in the world, and most especially toward you, with simplicity and godly sincerity—not by human wisdom but by the grace of God.