21And it shall come to pass, when many evils and troubles are befallen them, that this song shall testify against them as a witness; for it shall not be forgotten out of the mouths of their seed: for I know their imagination which they go about, even now, before I have brought them into the land which I sware. 22Moses therefore wrote this song the same day, and taught it the children of Israel. 23And he gave Joshua the son of Nun a charge, and said, Be strong and of a good courage: for thou shalt bring the children of Israel into the land which I sware unto them: and I will be with thee. 24And it came to pass, when Moses had made an end of writing the words of this law in a book, until they were finished,25That Moses commanded the Levites, which bare the ark of the covenant of the LORD, saying, 26Take this book of the law, and put it in the side of the ark of the covenant of the LORD your God, that it may be there for a witness against thee. 27For I know thy rebellion, and thy stiff neck: behold, while I am yet alive with you this day, ye have been rebellious against the LORD; and how much more after my death?