Deuteronomy 6:6-9
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6These words, which I command you this day, shall be on your heart; 7and you shall teach them diligently to your children, and shall talk of them when you sit in your house, and when you walk by the way, and when you lie down, and when you rise up. 8You shall bind them for a sign on your hand, and they shall be for symbols between your eyes. 9You shall write them on the door-posts of your house, and on your gates.
Deuteronomy 6:6-9 (WEB)