“Live in harmony with one another. Do not be haughty, but associate with the lowly. Never be wise in your own sight. Repay no one evil for evil, but give thought to do what is honorable in the sight of all. If possible, so far as it depends on you, live peaceably with all.” (Rom. 12:16-18)

“May the God of endurance and encouragement grant you to live in such harmony with one another, in accord with Christ Jesus,” (Rom. 15:5 ESV)

Therefore

 “Finally, all of you, have unity of mind, sympathy, brotherly love, a tender heart, and a humble mind.” (1 Peter 3:8)