The Apostle Paul
Romans 6:22BSB·traditional attribution

But now that you have been set free from sin and have become slaves to God, the fruit you reap leads to holiness, and the outcome is eternal life.

John Calvin Reformed @genevareformer

22. Ye have your fruit unto holiness, etc. As he had before mentioned a twofold end of sin, so he does now as to righteousness. Sin in this life brings the torments of an accusing conscience, and in the next eternal death. We now gather the fruit of righteousness, even holiness; we hope in future to gain eternal life.

Matthew Henry Presbyterian @wholebiblehenry

The apostle's transition, which joins this discourse with the former, is observable: "What shall we say then? Rom 6:1. What use shall we make of this sweet and comfortable doctrine? Shall we do evil that good may come, as some say we do? Rom 3:8. Shall we continue in sin that grace may abound?

Commenting on Romans 6:1-23

John Gill Reformed Baptist @doctorgill

But now being made free from sin, and become servants to God,.... In what sense regenerate persons are free from sin, and are become the servants of God, has been observed already; the consequence of which is, that such have their fruit unto holiness, and the end everlasting life: holiness is a fruit of freedom from the bondage of sin, and of serving God; holiness...