"For there is no faithfulness in their mouth, their inward part is destruction, their throat an open tomb. They flatter with their tongues. Pronounce them guilty, O God. Let them fall by their own counsels. Cast them out in the multitude of their transgressions, for they have rebelled against You" (Psalm 5:9-10). Who exactly does David speak of?
In all David's Psalms, his enemies were God's enemies. Everyday, when we pray the Psalms, we remember our major enemy, Satan and his angels. We then direct our prayers asking God to save us from their trickeries and temptations.