2 Corinthians 3:2-5

3:2 You yourselves are our letter, written on our hearts, known and read by everyone, 3:3 revealing that you are a letter of Christ, delivered by us, written not with ink but by the Spirit of the living God, not on stone tablets but on tablets of human hearts.

3:4 Now we have such confidence in God through Christ. 3:5 Not that we are adequate in ourselves to consider anything as if it were coming from ourselves, but our adequacy is from God,