Are we beginning to commend ourselves again? Or [do we], like some, need letters of recommendation to you or from you?
References for 2 Corinthians 3:1
You are our letter, inscribed on our hearts, known and read by all people,
revealing that you are a letter of Christ, delivered by us, inscribed not with ink but with the Spirit of the living God, not on stone tablets but on tablets of human hearts.
Now we possess such confidence through Christ toward God.
Not that we are adequate in ourselves to consider anything as from ourselves, but our adequacy [is] from God,
who also makes us adequate [as] servants of a new covenant, not of the letter, but of the Spirit, for the letter kills, but the Spirit gives life.
But if the ministry of death in letters carved on stone came with glory, so that the sons of Israel were not able to look intently into the face of Moses because of the glory of his face, which was transitory,
how will the ministry of the Spirit not be even more with glory?