Romans 12:14

12:14 Bless those who persecute you, bless and do not curse.

Romans 12:20

12:20 Rather, if your enemy is hungry, feed him; if he is thirsty, give him a drink; for in doing this you will be heaping burning coals on his head. ¹ 

[12:20]  ¹ sn A quotation from Prov 25:21-22.