Moses
Deuteronomy 32:1ESV·traditional attribution

“Give ear, O heavens, and I will speak, and let the earth hear the words of my mouth.

John Calvin Reformed @genevareformer

1. Give ear, O ye heavens. Moses commences in a strain of magnificence, lest the people should disdain this song with their usual pride, or even reject it altogether, being exasperated by its severe censures and reproaches. For we well know how the world naturally longs to be flattered, and that no strain can be gratifying to it unless it tickles and soothes the ear with praise.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A commanding preface or introduction to this song of Moses, Deu 32:1, Deu 32:2. He begins, 1. With a solemn appeal to heaven and earth concerning the truth and importance of what he was about to say, and the justice of the divine proceedings against a rebellious and backsliding people, for he had said (Deu 31:28) that he would in this song...

Commenting on Deuteronomy 32:1-6

John Gill Reformed Baptist @doctorgill

Give ear, O ye heavens, and I will speak; and hear, O earth, the words of my mouth. This song is prefaced and introduced in a very grand and pompous manner, calling on the heavens and earth to give attention; by which they themselves may be meant, by a "prosopopaeia", a figure frequently used in Scripture, when things of great moment and importance are spoken...