John Gill Commentary Deuteronomy 1:34

"And Jehovah heard the voice of your words, and was wroth, and sware, saying," — Deuteronomy 1:34 (ASV)

And the Lord heard the voice of your words
Of their murmurings against Moses and Aaron, and of their threatenings to them, Joshua and Caleb, and of their impious charge of hatred of them to God for bringing them out of Egypt, and of their rash wishes that they had died there or in the wilderness, and of their wicked scheme and proposal to make them a captain, and return to Egypt again:

and was wroth, and swore ;
by his life, himself; see (Numbers 14:28) ,

saying ;
as follows.