Moses
Deuteronomy 4:26KJV·traditional attribution

I call heaven and earth to witness against you this day, that ye shall soon utterly perish from off the land whereunto ye go over Jordan to possess it; ye shall not prolong your days upon it, but shall utterly be destroyed.

Matthew Henry Presbyterian

This most lively and excellent discourse is so entire, and the particulars of it are so often repeated, that we must take it altogether in the exposition of it, and endeavour to digest it into proper heads, for we cannot divide it into paragraphs. I.

Commenting on Deuteronomy 4:1-40

John Gill Reformed Baptist

I call heaven and earth to witness against you this day,.... Should they be guilty of such a sin, since they were so strongly and publicly cautioned against it; and even the heaven and the earth were called upon as witnesses of the law being set before them, which so expressly forbids it, Deu 30:19.

Jamieson-Fausset-Brown Reformed

I call heaven and earth to witness against you--This solemn form of adjuration has been common in special circumstances among all people. It is used here figuratively, or as in other parts of Scripture where inanimate objects are called up as witnesses (Deu 32:1; Isa 1:2).