Matthew 5:9

“Blessed are the peacemakers, for they shall be called sons of God.

(ESV)

James 3:16–18

16 For where jealousy and selfish ambition exist, there will be disorder and every vile practice. 17 But the wisdom from above is first pure, then peaceable, gentle, open to reason, full of mercy and good fruits, impartial and sincere. 18 And a harvest of righteousness is sown in peace by those who make peace.

(ESV)