Life generally requires a substantial amount of faith. We face daily circumstances in which our faith is often tried. In Hebrews chapter 11, we observe that God's people exercised faith in various circumstances. "By faith..." is repeatedly used to show that faith was an important supplement for receiving the hope of things the unseen. We pray to God by faith; "we by faith understand that the universe was created by the Word of God so that what is seen was not made out of things that are visible" (Hebrews 11: 3).