'Enemy's' in the Bible

I will say to God, my rock,“Why have You forgotten me?Why must I go about in sorrowbecause of the enemy’s oppression?”

For You are the God of my refuge.Why have You rejected me?Why must I go about in sorrowbecause of the enemy’s oppression?

because of the enemy’s voice,because of the pressure of the wicked.For they bring down disaster on meand harass me in anger.