Deuteronomy 30:8-10

8And you shall again obey the voice of the Lord and keep all his commandments that I command you today.

9The Lord your God will make you abundantly prosperous in all the work of your hand, in the fruit of your womb and in the fruit of your cattle and in the fruit of your ground. For the Lord will again take delight in prospering you, as he took delight in your fathers,

10when you obey the voice of the Lord your God, to keep his commandments and his statutes that are written in this Book of the Law, when you turn to the Lord your God with all your heart and with all your soul.