Deuteronomy 11:16-21

“But be careful. Don’t let your heart be deceived so that you turn away from the LORD and serve and worship other gods. If you do, the LORD’s anger will burn against you. He will shut up the sky and hold back the rain, and the ground will fail to produce its harvests. Then you will quickly die in that good land the LORD is giving you. “So commit yourselves wholeheartedly to these words of mine. Tie them to your hands and wear them on your forehead as reminders. Teach them to your children. Talk about them when you are at home and when you are on the road, when you are going to bed and when you are getting up. Write them on the doorposts of your house and on your gates, so that as long as the sky remains above the earth, you and your children may flourish in the land the LORD swore to give your ancestors.