Romans 6:12

“Let not sin therefore reign in your mortal body, etc..] Since grace reigns in you, sin should not: seeing ye are dead to sin, are baptized into the death of Christ, and are dead with him, and alive through him, sin therefore should not reign in you, and over you. This exhortation does not suppose a freewill power in man naturally, for this is spoken to persons, who had the Spirit and grace of Christ, and in whom God had wrought both to will and to do of his good pleasure; nor is this exhortation unnecessary to believers, though they are dead to sin, and though God has promised it shall not have the dominion over them, and though reigning sin, as divines say, cannot be in regenerate persons;…”

“WHAT PRACTICAL USE BELIEVERS SHOULD MAKE OF THEIR DEATH TO SIN AND LIFE TO GOD THROUGH UNION TO THE CRUCIFIED SAVIOUR. (Rom 6:12-23) Let not sin therefore--as a Master reign--(The reader will observe that wherever in this section the words "Sin," "Obedience," "Righteousness," "Uncleanness," "Iniquity," are figuratively used, to represent a Master, they are here printed in capitals, to make this manifest to the eye, and so save explanation). in your mortal body, that ye should obey it--sin. in the lusts thereof--"the lusts of the body," as the Greek makes evident. (The other reading, perhaps the true one, "that ye should obey the lusts thereof," comes to the same thing). The "body" is here…”

“Let not sin therefore - This is a conclusion drawn from the previous train of reasoning. The result of all these considerations is, that sin should not be suffered to reign in us. Reign - Have dominion; obtain the ascendency, or rule. In your mortal body - In you. The apostle uses the word “mortal” here, perhaps, for these reasons, To remind them of the tendency of the flesh to sin and corruption, as equivalent to “fleshly,” since the flesh is often used to denote evil passions and desires (compare Romans 7:5, Romans 7:23; Romans 8:3, Romans 8:6); and, To remind them of their weakness, as the body was mortal, was soon to decay, and was therefore liable to be overcome by temptation. Perhaps,…”

“Let not sin reign even in your mortal body - It must be subject to death, but it need not be subject to sin. Romans 6:13”

“Let not: Rom 6:16, Rom 5:21, Rom 7:23, Rom 7:24; Num 33:55; Deu 7:2; Jos 23:12, Jos 23:13; Jdg 2:3; Psa 19:13; Psa 119:133 mortal: Rom 8:11; Co1 15:53, Co1 15:54; Co2 4:11, Co2 5:4 in the lusts: Rom 6:16, Rom 2:8, Rom 8:13, Rom 13:14; Gal 5:16, Gal 5:24; Eph 2:3, Eph 4:22; Th1 4:5; Ti2 2:22; Tit 2:12, Tit 3:3; Jam 1:14, Jam 1:15, Jam 4:1-3; Pe1 1:14, Pe1 2:11, Pe1 4:2, Pe1 4:3; Jo1 2:15-17; Jde 1:16, Jde 1:18 Romans 6:13”