Below is a list of 40 commands that pertain to believers in Romans.  These commands must be obeyed.  But what compels my obedience is my love and gratitude for Christ.

1. Reckon Yourselves to be dead indeed to sin (6.11).
2. Do not let sin reign in your mortal body, that you should obey it in its lusts (6.12).
3. Do not present your members as instruments of unrighteousness to sin (6.13a).
4. Present yourselves to God as being alive from the dead (6.13b).
5. Present your members as instruments of righteousness to God (6.13c).
6. Present your members as slaves of righteousness for holiness (6.19).
7. Do not boast against the branches (Gentiles boasting against Jews) because the root supports you (11.18).
8. Do not be haughty, but fear (11.20).
9. Consider the goodness and severity of God: on those who fell, severity; but toward you, goodness, if you continue in His goodness (11.22).
10. Do not be conformed to this world (12.2a).
11. Be transformed by the renewing of your mind (12.2b).
12. Bless those who persecute you; bless and do not curse (12.14).
13. Do not be wise in your own opinion (12.16).
14. Give place to wrath (12.19).
15. If your enemy is hungry, feed him (12.20a).
16. If your enemy is thirsty, give him a drink (12.20b).
17. Do not be overcome by evil (12.21a).
18. Overcome evil with good (12.21b).
19. Let every soul be subject to the governing authorities (13.1).
20. Do what is good, and you will have praise from the same (13.3).
21. If you do evil, be afraid (13.4).
22. Render therefore to all their due (13.7).
23. Owe no one anything except to love one another (13.8).
24. Put on the Lord Jesus Christ, and make no provision for the flesh, to fulfill its lusts (13.14).
25. Receive one who is weak in the faith (14.1).
26. Let not him who eats despise him who does not eat (14.3).
27. Let not him who does not eat judge him who eats (14.3).
28. Let each be fully convinced in his own mind (14.5).
29. Let us not judge one another anymore, but rather resolve this, not to put a stumbling block or a cause to fall in our brother’s way (14.13).
30. Do not destroy with your food the one for whom Christ died (14.15).
31. Do not let your good be spoken of as evil (14.16).
32. Do not destroy the work of God for the sake of food (14.20).
33. Have faith to yourself before God (14.22).
34. Let each of us please his neighbor for his good, leading to edification (15.2).
35. Receive one another, just as Christ also received us, to the glory of God (15.7).
36. Rejoice, O Gentiles, with His people (15.10).
37. Praise the LORD, all you Gentiles (15.11a).
38. Laud Him, all you peoples (15.11b).
39. Several commands to greet believers in Romans 16.1-16.
40. Avoid those who cause divisions and offenses, contrary to the doctrine which you learned (16.17).