And if thou wilt walk in my ways, to keep my statutes and my commandments, as thy father David did walk, then I will lengthen thy days.
Ver. 14. And if thou wilt walk in my ways.] It hath been before observed that God's promises are with a condition, which is as an oar in a boat or stern of a ship, and turneth the promise another way.
As thy father David did walk.] Examples are the best lectures, and virtue the best example.