Deuteronomy 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.”
And Moses came and spake all the words of this song in the ears of the people, he, and Hoshea the son of Nun.
And Moses made an end of speaking all these words to all Israel:
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.
For it is not a vain thing for you; because it is your life: and through this thing ye shall prolong your days in the land, whither ye go over Jordan to possess it.
And the Lord spake unto Moses that selfsame day, saying,
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“And these words, which I command thee this day, shall be in thine heart:”
“And ye shall observe to do all the statutes and judgments which I set before you this day.”
“Observe and hear all these words which I command thee, that it may go well with thee, and with thy children after thee for ever, when thou doest that which is good and right in the sight of the Lord thy God.”
“And shalt return unto the Lord thy God, and shalt obey his voice according to all that I command thee this day, thou and thy children, with all thine heart, and with all thy soul;”
“Ye shall diligently keep the commandments of the Lord your God, and his testimonies, and his statutes, which he hath commanded thee.”