'Enemy' in the Bible

"You have heard that it was said, 'You shall love your neighbor, and hate your enemy.'

but while people slept, his enemy came and sowed darnel weeds also among the wheat, and went away.

"He said to them, 'An enemy has done this.' "The servants asked him, 'Do you want us to go and gather them up?'

The enemy who sowed them is the devil. The harvest is the end of the age, and the reapers are angels.

Behold, I give you authority to tread on serpents and scorpions, and over all the power of the enemy. Nothing will in any way hurt you.

and said, "Full of all deceit and all cunning, you son of the devil, you enemy of all righteousness, will you not cease to pervert the right ways of the Lord?

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

The last enemy that will be abolished is death.

So then, have I become your enemy by telling you the truth?

Don't count him as an enemy, but admonish him as a brother.

You adulterers and adulteresses, don't you 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.