Deuteronomy 32:46

32:46 He said to them, Set your heart to all the words which I testify to you this day, which you shall command your children to observe to do, [even] all the words of this law.
-World English Bible

Other Translation

32:46 And he said unto them, Set your hearts unto all the words which I testify among you this day, which ye shall command your children to observe to do, all the words of this law.
-King James Version