Deuteronomy 6:4-7

Hear, Israel: the LORD is our God; the LORD is one: and you shall love the LORD your God with all your heart, with all your soul, and with all your might. These words, which I command you today, shall be on your heart; and 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.