Deuteronomy 31:9, 19
Deuteronomy 31:9 NASB1995
So 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.
Deuteronomy 31:19 NASB1995
“Now therefore, write this song for yourselves, and teach it to the sons of Israel; put it on their lips, so that this song may be a witness for Me against the sons of Israel.