Deuteronomy 30:2, 8, 20
Deuteronomy 30:2 ASV
and shalt return unto Jehovah thy God, and shalt obey his voice according to all that I command thee this day, thou and thy children, with all thy heart, and with all thy soul
Deuteronomy 30:8 ASV
And thou shalt return and obey the voice of Jehovah, and do all his commandments which I command thee this day.