"1 Are we beginning to commend ourselves again? Or do we need, as some do, letters of recommendation to you, or from you? 2 You yourselves are our letter of recommendation, written on our hearts, to be known and read by all. 3 And you show that you are a letter from Christ delivered by us, written not with ink but with the Spirit of the living God, not on tablets of stone but on tablets of human hearts." -2 Cor 3:1-3