Deuteronomy 30:8-10

30:8 You will return and obey the Lord, keeping all his commandments I am giving you today. 30:9 The Lord your God will make the labor of your hands abundantly successful and multiply your children, the offspring of your cattle, and the produce of your soil. For the Lord your God will once more rejoice over you to make you prosperous just as he rejoiced over your ancestors, 30:10 if you obey the Lord your God and keep his commandments and statutes that are written in this scroll of the law. But you must turn to him with your whole mind and being.