1 Thessalonians 4:11
and to vie with one another in eagerness for peace, every one minding his own business and working with his hands, as we ordered you to do:
Matthew 5:39-41
But I tell you not to resist a wicked man, but if any one strikes you on the right cheek, turn the other to him as well.
Acts 6:1-5
About this time, as the number of disciples was increasing, complaints were made by the Greek-speaking Jews against the Hebrews because their widows were habitually overlooked in the daily ministration.
Acts 15:2-21
Between these new comers and Paul and Barnabas there was no little disagreement and controversy, until at last it was decided that Paul and Barnabas and some other brethren should go up to consult the Apostles and Elders in Jerusalem on this matter.
Romans 12:18
If you can, so far as it depends on you, live at peace with all the world.
2 Timothy 2:23-24
But avoid foolish discussions with ignorant men, knowing--as you do--that these lead to quarrels;
James 3:14-18
But if in your hearts you have bitter feelings of envy and rivalry, do not speak boastfully and falsely, in defiance of the truth.