Exodus 13:9-10
9
And it shall be for a sign unto thee upon thine hand, and for a memorial between thine eyes, that the LORD'S law may be in thy mouth: for with a strong hand hath the LORD brought thee out of Egypt.
10
Thou shalt therefore keep this ordinance in his season from year to year.
Bible text: King James Version (1769 Blayney text) · Public domain