Apostol § 172

Brethren, thanks be unto God who always leads us in triumph in Christ, and through us diffuses the fragrance of His knowledge everywhere. For we are unto God the sweet fragrance of Christ among them that are being saved and among them that perish. To the one we are a fragrance of death to death, and to the other the fragrance of life to life. And who is sufficient for these things? For we are not, as so many, which corrupt the Word of God; but as of sincerity, but as from God, we speak in the sight of God in Christ... Do we begin again to commend ourselves? Or do we need, as some others, epistles of commendation to you or letters of commendation from you? You are our epistle written in our hearts, known and read by all men; you are manifestly an epistle of Christ, ministered by us, written not with ink but by the Spirit of the living God, not on tablets of stone but on tablets of flesh, that is, of the heart.