God's mercies must move us to please God.
Romans 12:1 I beseech you therefore, brethren, by the mercies of God, to present your bodies a living sacrifice, holy, acceptable to God, [which is] your spiritual service. Romans 12:2 And be not fashioned according to this world: but be ye transformed by the renewing of your mind, that ye may prove what is the good and acceptable and perfect will of God.
No man must think too well of himself,
Romans 12:3 For I say, through the grace that was given me, to every man that is among you, not to think of himself more highly than he ought to think; but so to think as to think soberly, according as God hath dealt to each man a measure of faith. Romans 12:4 For even as we have many members in one body, and all the members have not the same office: Romans 12:5 so we, who are many, are one body in Christ, and severally members one of another.
but attend, every one, on that calling wherein he is placed.
Romans 12:6 And having gifts differing according to the grace that was given to us, whether prophecy, [let us prophesy] according to the proportion of our faith; Romans 12:7 or ministry, [let us give ourselves] to our ministry; or he that teacheth, to his teaching; Romans 12:8 or he that exhorteth, to his exhorting: he that giveth, [let him do it] with liberality; he that ruleth, with diligence; he that showeth mercy, with cheerfulness.
Love, and many other duties, are required of us.
Romans 12:9 Let love be without hypocrisy. Abhor that which is evil; cleave to that which is good. Romans 12:10 In love of the brethren be tenderly affectioned one to another; in honor preferring one another; Romans 12:11 in diligence not slothful; fervent in spirit; serving the Lord; Romans 12:12 rejoicing in hope; patient in tribulation; continuing stedfastly in prayer; Romans 12:13 communicating to the necessities of the saints; given to hospitality. Romans 12:14 Bless them that persecute you; bless, and curse not. Romans 12:15 Rejoice with them that rejoice; weep with them that weep. Romans 12:16 Be of the same mind one toward another. Set not your mind on high things, but condescend to things that are lowly. Be not wise in your own conceits. Romans 12:17 Render to no man evil for evil. Take thought for things honorable in the sight of all men. Romans 12:18 If it be possible, as much as in you lieth, be at peace with all men.
Revenge is specially forbidden.
Romans 12:19 Avenge not yourselves, beloved, but give place unto the wrath [of God]: for it is written, Vengeance belongeth unto me; I will recompense, saith the Lord. Romans 12:20 But if thine enemy hunger, feed him; if he thirst, give him to drink: for in so doing thou shalt heap coals of fire upon his head. Romans 12:21 Be not overcome of evil, but overcome evil with good.