The Apostle Paul
Romans 6:13BSB·traditional attribution

Do not present the parts of your body to sin as instruments of wickedness, but present yourselves to God as those who have been brought from death to life; and present the parts of your body to Him as instruments of righteousness.

John Calvin Reformed @genevareformer

13. Nor present your members, etc. When once sin has obtained dominion in our soul, all our faculties are continually applied to its service. He therefore describes here the reign of sin by what follows it, that he might more clearly show what must be done by us, if we would shake off its yoke.

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

Neither yield ye your members,.... The apostle more fully explains what he means by obeying sin in the lusts thereof; a presenting, or making use of the "members, as instruments of unrighteousness unto sin": by their "members" he means the several powers and faculties of the soul, and so the Ethiopic version renders it, "your souls"; or the several parts of the body, or both...