Psalms 78:9

7that they might set their hope in God, and not forget God’s deeds, but keep his commandments,

8and might not be as their fathers— a stubborn and rebellious generation, a generation that didn’t make their hearts loyal, whose spirit was not steadfast with God.

9The children of Ephraim, being armed and carrying bows, turned back in the day of battle.

10They didn’t keep God’s covenant, and refused to walk in his law.

11They forgot his doings, his wondrous deeds that he had shown them.