Mat 5:44

"But I say to you, love your enemies, bless those who curse you, do good to those who hate you, and pray for those who spitefully use you and persecute you,

Rom 12:20

Therefore "If your enemy is hungry, feed him; If he is thirsty, give him a drink; For in so doing you will heap coals of fire on his head."

Phil 3:18

For many walk, of whom I have told you often, and now tell you even weeping, that they are the enemies of the cross of Christ:

Heb 10:13

from that time waiting till His enemies are made His footstool.

1 Cor 15:25

For He must reign till He has put all enemies under His feet.

James 4:4

Adulterers and adulteresses! Do you not know that friendship with the world is enmity with God? Whoever therefore wants to be a friend of the world makes himself an enemy of God.