Exodus 13:9~10
Exodus 13:9 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. 12 I MC VC
Exodus 13:10 Thou shalt therefore keep this ordinance in his season from year to year. 10 I MC VC