The Apostle Paul
Romans 6:20ESV·traditional attribution

For when you were slaves of sin, you were free in regard to righteousness.

John Calvin Reformed @genevareformer

20. For when ye were, etc. He still repeats the difference, which he had before mentioned, between the yoke of righteousness and that of sin; for these two things, sin and righteousness, are so contrary, that he who devotes himself to the one, necessarily departs from the other.

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

For when ye were the servants of sin,.... This is an argument used, or a reason given, why regenerate persons should be diligent in the service of righteousness; because when they were employed in the drudgery of sin, they were free from righteousness; they had no righteousness, nor were they desirous of any; yea, averse to it, threw off the yoke of the law of...