Proverbs 3:29-30  
Devise not evil against thy neighbour, seeing he dwelleth securely by thee.  Strive not with a man without cause, if he have done thee no harm.  

Proverbs 16:7  
When a man's ways please the LORD, he maketh even his enemies to be at peace with him.

Proverbs 24:17-18  
Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:  Lest the LORD see it, and it displease him, and he turn away his wrath from him.  

Proverbs 25:8  
Go not forth hastily to strive, lest thou know not what to do in the end thereof, when thy neighbour hath put thee to shame.

Proverbs 25:21-22  
If thine enemy be hungry, give him bread to eat; and if he be thirsty, give him water to drink:  For thou shalt heap coals of fire upon his head, and the LORD shall reward thee.  

Paul quotes from this passage in Romans 12:20-21.

Proverbs 26:24-28  
He that hateth dissembleth with his lips, and layeth up deceit within him;  When he speaketh fair, believe him not: for there are seven abominations in his heart.  Whose hatred is covered by deceit, his wickedness shall be shewed before the whole congregation.  Whoso diggeth a pit shall fall therein: and he that rolleth a stone, it will return upon him.  A lying tongue hateth those that are afflicted by it; and a flattering mouth worketh ruin.  

Proverbs 27:6  
Faithful are the wounds of a friend; but the kisses of an enemy are deceitful.

see also Leviticus 19:17 & Ephesians 4:15

Proverbs 28:4  
They that forsake the law praise the wicked: but such as keep the law contend with them.

Romans 1:32

Proverbs 29:10  
The bloodthirsty hate the upright: but the just seek his soul.

Proverbs 29:27  
An unjust man is an abomination to the just: and he that is upright in the way is abomination to the wicked.

Total Verses: 17
Total Passages: 10