'Enemy' in the Bible

Your right hand, LORD, was majestic in strength, your right hand, LORD, shattered the enemy.

"The enemy said, "I'll pursue them, I'll overtake them, I'll divide the spoil. I'll satisfy my anger on them, I'll draw my sword, and my hand will bring them to ruin.'

Indeed, if you carefully obey him and do everything that I say, then I'll be an enemy to your enemies and an adversary to your adversaries,