'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.