Deuteronomy 12:25
Thou shalt not eat it; that it may go well with thee, and with thy children after thee, when thou shalt do that which is right in the sight of the LORD. Thou shalt not eat it; that it may go well with thee, and with thy children after thee, when thou shalt do that which is right in the sight of the LORD.
Moses delivered three addresses just before his death, and this command stands within them. The larger setting is Deuteronomy 5 to 26, which reviews the law for the new generation and forms the second-law or duplicate-of-the-law portion that gives the book its name. More narrowly, the command falls within Deuteronomy 10 to 13.
The broad permission to eat what one desires is limited by God's word, so permitted food does not include animals specifically forbidden as unclean. That distinction between clean and unclean animals was made for the good and health of the people. What is prohibited must not be eaten, and such obedience brings well-being to the people and to their children after them when they do what is right in the sight of the Lord, as one of the gracious promises and appeals accompanying the law.