2 Corinthians 3:6

3:6 who made us adequate to be servants of a new covenant not based on the letter but on the Spirit, for the letter kills, but the Spirit gives life.

2 Corinthians 11:23

11:23 Are they servants of Christ? (I am talking like I am out of my mind!) I am even more so: with much greater labors, with far more imprisonments, with more severe beatings, facing death many times.