Deuteronomy 6:5-8

5Love the LORD your God with all your heart and with all your soul and with all your strength. 6These commandments that I give you today are to be on your hearts. 7Impress them on your children. Talk about them when you sit at home and when you walk along the road, when you lie down and when you get up. 8Tie them as symbols on your hands and bind them on your foreheads.