Moses
Numbers 14:35ESV·traditional attribution

I, the LORD, have spoken. Surely this will I do to all this wicked congregation who are gathered together against me: in this wilderness they shall come to a full end, and there they shall die.”

Matthew Henry Presbyterian @wholebiblehenry

We have here God's answer to the prayer of Moses, which sings both of mercy and judgment. It is given privately to Moses (Num 14:20-25), and then directed to be made public to the people, Num 14:26-35. The frequent repetitions of the same things in it speak these resolves to be unalterable. Let us see the particulars. I.

Commenting on Numbers 14:20-35

John Gill Reformed Baptist @doctorgill

And the men which Moses sent to search the land,.... Ten of them: who returned; as they all did, who were sent to search it: and made all the congregation to murmur against him; against, Moses that sent them; they murmured themselves, and made others murmur: by bringing up a slander upon the land; that it ate up its inhabitants, and that the inhabitants of...

Keil & Delitzsch Lutheran @keilanddelitzsch

Num 14:35 As surely as Jehovah had spoken this, would He do it to that evil congregation, to those who had allied themselves against Him (נועד, to bind themselves together, to conspire; Num 16:11; Num 27:3). There is no ground whatever for questioning the correctness of the statement, that the spies had travelled through Canaan for forty days, or regarding this as a so-called round...