Deuteronomy 31:9, 19
Deuteronomy 31:9 NIV
So Moses wrote down this law and gave it to the Levitical priests, who carried the ark of the covenant of the LORD, and to all the elders of Israel.
Deuteronomy 31:19 NIV
“Now write down this song and teach it to the Israelites and have them sing it, so that it may be a witness for me against them.