Lamech twisted God's gracious protection of Cain into a demand for greater revenge. He used God's mercy as justification for his own pride — a warning against using God's grace as a licence for sin.
Memory phrase: God's grace is not an excuse for pride.
Talk about it: Lamech thought he deserved even more than Cain. Have you ever felt like you deserved more than someone else? What did you do with that feeling?
Prayer: God, help me receive Your kindness with a humble heart, not use it to do whatever I want.