Deuteronomy 11:15

a land which the LORD your God cares for. The LORD your God’s eyes are always on it, from the beginning of the year even to the end of the year.

It shall happen, if you shall listen diligently to my commandments which I command you today, to love the LORD your God, and to serve him with all your heart and with all your soul,

that I will give the rain for your land in its season, the early rain and the latter rain, that you may gather in your grain, your new wine, and your oil.

Be careful, lest your heart be deceived, and you turn away to serve other gods and worship them;

and the LORD’s anger be kindled against you, and he shut up the sky so that there is no rain, and the land doesn’t yield its fruit; and you perish quickly from off the good land which the LORD gives you.

Therefore you shall lay up these words of mine in your heart and in your soul. You shall bind them for a sign on your hand, and they shall be for frontlets between your eyes.