Psalms 89:30 KJV

If his children forsake my law, and walk not in my judgments;
Psalms 89:30, King James Version

In context

29 His seed also will I make to endure for ever, and his throne as the days of heaven.

30 If his children forsake my law, and walk not in my judgments;

31 If they break my statutes, and keep not my commandments;