Isaiah 63:17

O Lord, why hast, Thou made us to err from Thy ways, why did He permit this going astray, and hardened our heart from Thy fear? so that the judgment of hardening goes into effect upon those who despise His grace and mercy. Return for Thy servants' sake, on account of the relation of the covenant which obtained between the Lord and His people, the tribes of Thine inheritance, whom He Himself had chosen to be partakers of His blessings. One of the most effective forms of praying is that of taking the Lord aside, as it were, and reminding Him of His promises, to hold Him to His Word.