God is displeased by gloating over enemies. The remarkable consequence here is that God may redirect His justice — withdrawing His discipline of the wicked — if the person watching becomes proud about it. Pride can actually work against justice. God's purposes are not served by our gloating.
Memory phrase: God sees pride in our hearts.
Talk about it: How does God feel when we are proud about someone else's trouble?
Prayer: God, search my heart for pride and take it away. I want to please You.