Deuteronomy 30:9-10

And the Lord your God will make you fertile in all good things, blessing the work of your hands, and the fruit of your body, and the fruit of your cattle, and the fruit of your land: for the Lord will have joy in you, as he had in your fathers: If you give ear to the voice of the Lord your God, keeping his orders and his laws which are recorded in this book of the law, and turning to the Lord your God with all your heart and with all your soul.