Matthew 5:43-48

43. Ye have heard that it hath been said, Thou shalt love thy neighbor, and hate thine enemy.
44. But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
45. That ye may be the children of your Father which is in heaven: For he maketh his sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust.
46. For if ye love them which love you, what reward have ye? do not even the publicans the same?
47. And if ye salute your brethren only, what do ye more than others? do not even the publicans so?
48. Be ye therefore perfect, even as your Father which is in heaven is perfect.

James 3:2-3/8-10

2. For in many things we offend all. If any man offend not in word, the same is a perfect man, and able also to bridle the whole body.
3. Behold, we put bits in the horses' mouths, that they may obey us, and we turn about their whole body.

8. But the tongue can no man tame; it is an unruly evil, full of deadly poison.
9. Therewith bless we God, even the Father; and therewith curse we men, which are made after the similitide of God.
10. Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be.

3 Nephi 12:48

Therefore I would that ye should be perfect even as I, or your Father who is in heaven is perfect.

1 Corinthians 13:1-13

1. Though I speak with the tongue of men and of angels, and have not charity, I am become as sounding brass, or a tinkling cymbal.
2. And though I have the gift of prophesy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not charity, I am nothing.
3. And though I bestow all my goods to feed the poor, and though I give my body to be burned, and have not charity, it profiteth me nothing.
4. Charity suffereth long, and is kind, charity envieth not; charity vaunteth not itself, is not puffed up,
5. Doth not behave itself unseemingly, seeketh not her own, is not easily provoked, thinketh no evil;
6. Rejoiceth not in iniquity, but rejoiceth in the truth;
7. Beareth all things, believeth all things, hopeth all things, endureth all things.
8. Charity never faileth: but whether there be prophecies, they shall fail; whether there be tongues, they shall cease; whether there be knowledge, it shall vanish away.
9. For we know in part, and we prophesy in part.
10. But when that which is perfect is come, then that which is in part shall be done away.
11. When I was a child I spake as a child, I understood as a child, I thought as a child: but when I became a man, I put away childish things.
12. For now we see through a glass, darkly; but then face to face: now I know in part, but then shall I know even as I am known.
13. And now abideth faith, hope, and charity, these three; but the greatest of these is charity.