Roman Catechism 23.31

Chapter 23 — Part III: The Decalogue — Introduction on the Commandments in General

Section 31. (The pastor) should also explain that God delayed the fulfilment of His promise until after the lapse of more than four hundred years, in order that His people might be sustained by faith and hope; for, as we shall show when we come to explain the first Commandment, God wishes His children to depend on Him at all times and to repose all their confidence in His goodness.