Hear O Israel, the Lord you God you lord Is One.

And you shall love the lord with all your hear and with all your might and with all thy Soul and these words that I command you this day shall be placed upon you door posts of your house and on your gates. You shall bind them to your hearts and they shall be frontlets before your eyes.

You shall teach them to you children and your children’s children.

Deuteronomy chapter 6 verse 4-5