Write this song — Which is contained Deuteronomy 32:1-43, and is put into a song that it may be better learned, and more fixed in their minds and memories. Put it in their mouths — Cause them to learn it, and sing it one to another, to oblige them to more circumspection. A witness — Of my kindness in giving them so many blessings, of my patience in bearing so long with them, of my clemency in giving them such fair and plain warnings, and my justice in punishing such an incorrigible people.
Related Commentaries of Deuteronomy 31:19
Deuteronomy 31:19
19 Now therefore write ye this song for you, and teach it the children of Israel: put it in their mouths, that this song may be a witness for me against the children of Israel.