Throughout the Old Testament, God often reminded His children to remember His mighty acts on their behalf. Sometimes visible memorials were set up to facilitate their recall, such as the pile of stones taken from the middle of the Jordan River when God held back the waters to allow them to enter the Promised Land (Joshua 4:6).

"Hear, O my people, and I will testify unto thee: O Israel, if thou wilt hearken unto me. . . . open thy mouth wide, and I will fill it" (Psalm 81:8,10).

"If we confess our sins, He is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness" (I John 1:9).

"For by Him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by Him, and for Him" (Colossians 1:16).

"Jesus answered and said unto her, Whosoever drinketh of this water shall thirst again: But whosoever drinketh of the water that I shall give him shall never thirst; but the water that I shall give him shall be in him a well of water springing up into everlasting life" (John 4:13-14).