Psalm 69:4, 9-12,28 David in this Psalm was really upset at what people were doing to him for praising God. He wanted God to punish them for all the wrong they were doing to him by making fun of him, making up songs and joke about him. Let people do what's in their head but God is the one who can punish them. Let God be your Vindicator don't take action into your own hands.