Moses
Deuteronomy 32:45BSB·traditional attribution

When Moses had finished reciting all these words to all Israel,

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The solemn delivery of this song to the children of Israel, Deu 32:44, Deu 32:45. Moses spoke it to as many as could hear him, while Joshua, in another assembly, at the same time, delivered it to as many as his voice would reach.

Commenting on Deuteronomy 32:44-52

John Gill Reformed Baptist @doctorgill

For it is not a vain thing for you,.... That is, the law is not, and the observance of it in them and their children; it was no light and trifling matter, but of great importance and consequence, obedience to it being attended with rewards, and disobedience with punishment: because it is your life: if obeyed, the means of a comfortable and happy life, in...