Moses came with Joshua1 son of Nun and spoke all the words of this song in the hearing of the people.
References for Deuteronomy 32:44
When Moses finished reciting all these words to all Israel,
he said to them, "Take to heart all the words I have solemnly declared to you this day,2 so that you may command3 your children to obey carefully all the words of this law.
References for Deuteronomy 32:46