Deuteronomy 30:16-20

in that I command you today to love the LORD your God, to walk in His ways and to keep His commandments and His statutes and His judgments, that you may live and multiply, and that the LORD your God may bless you in the land where you are entering to possess it. But if your heart turns away and you will not obey, but are drawn away and worship other gods and serve them, I declare to you today that you shall surely perish. You will not prolong your days in the land where you are crossing the Jordan to enter and possess it. I call heaven and earth to witness against you today, that I have set before you life and death, the blessing and the curse. So choose life in order that you may live, you and your descendants, by loving the LORD your God, by obeying His voice, and by holding fast to Him; for this is your life and the length of your days, that you may live in the land which the LORD swore to your fathers, to Abraham, Isaac, and Jacob, to give them.”