"Now therefore write this song and teach it to the people of Israel. Put it in their mouths, that this song may be a witness for me against the people of Israel.
And the LORD commissioned Joshua the son of Nun and said, "Be strong and courageous, for you shall bring the people of Israel into the land that I swore to give them. I will be with you."
Then Moses wrote this law and gave it to the priests, the sons of Levi, who carried the ark of the covenant of the LORD, and to all the elders of Israel.