2 Corinthians 3:3-5

New Catholic Bible

³ And you make it clear that you are a letter from Christ entrusted to our care, a letter written not with ink but with the Spirit of the living God, and written not on tablets of stone^[a] but on tablets of the human heart.

⁴ Such is the complete confidence in God that we have through Christ. ⁵ Obviously, we are not competent of ourselves to take credit for anything as coming from us. Our competence comes from God