Read Exodus 13:16 Using Other Translations
And it shall be for a token upon thine hand, and for frontlets between thine eyes: for by strength of hand the LORD brought us forth out of Egypt.
It shall be as a mark on your hand or frontlets between your eyes, for by a strong hand the LORD brought us out of Egypt."
This ceremony will be like a mark branded on your hand or your forehead. It is a reminder that the power of the LORD ’s mighty hand brought us out of Egypt.”