Exodus 13:9, 16

And it shall be for a sign unto thee upon thy hand, and for a memorial between thine eyes, that the law of Jehovah may be in thy mouth: for with a strong hand hath Jehovah brought thee out of Egypt.

And it shall be for a sign upon thy hand, and for frontlets between thine eyes: for by strength of hand Jehovah brought us forth out of Egypt.