Now faith is the assurance of things hoped for, the conviction of things not seen. For by it the people of old received their commendation. By faith we 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. And without faith it is impossible to please Him, for whoever would draw near to God must believe that He exists and that He rewards those who seek Him.

Who appointed these sacraments? The Lord Jesus Christ. Why did Christ appoint these sacraments? To distinguish His disciples from the world and to comfort and strengthen them.