Deuteronomy 11:18-20

18Continue to think carefully about these commands in everything that you do. Tie them as signs onto your hands so that you remember them. Also tie them around your heads.

19Teach them to your children. Talk about them when you sit together at home. Talk about them as you walk along the road, when you lie down and when you get up.

20Write them on the wood beside the doors of your houses and on your gates.