The Apostle Paul
2 Corinthians 3:6ESV·traditional attribution

who has made us sufficient to be ministers of a new covenant, not of the letter but of the Spirit. For the letter kills, but the Spirit gives life.

John Calvin Reformed @genevareformer

6. Who hath made us competent. “Lequel aussi nous a rendus suffisans ministres;” — “Who also hath made us sufficient ministers.” He had acknowledged himself to be altogether useless. Now he declares, that, by the grace of God, he has been qualified It is justly observed by Barnes, that the rendering in our authorized version — “Who hath made us able ministers” — “does not...

Matthew Henry Presbyterian @wholebiblehenry

Here the apostle makes a comparison between the Old Testament and the New, the law of Moses and the gospel of Jesus Christ, and values himself and his fellow-labourers by this, that they were able ministers of the New Testament, that God had made them so, Co2 3:6. This he does in answer to the accusations of false teachers, who magnify greatly the law of Moses. I.

Commenting on 2 Corinthians 3:6-11

John Gill Reformed Baptist @doctorgill

Who also hath made us able ministers,.... This is an answer to the question in Co2 2:16 who is sufficient for these things? no man is of himself; we are indeed sufficient for them, but not of ourselves; our sufficiency is of God, he hath made us able, or sufficient ministers: such ministers as are not of men's, but God's making, are sufficient ones; and...