Moses
Numbers 14:34BSB·traditional attribution

In keeping with the forty days you spied out the land, you shall bear your guilt forty years—a year for each day—and you will experience My alienation.

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

I the Lord have said,.... Determined, resolved on doing what I have declared, and again repeat it; the decree is absolute and peremptory, and will never be revoked: I will surely do it to all this evil congregation, that are gathered together against me; against his ministers, Moses the chief magistrate, and Aaron the high priest; and this is interpreted gathering, conspiring, and rebelling against...

Jamieson-Fausset-Brown Reformed @jfbcommentary

ye shall know my breach of promise--that is, in consequence of your violation of the covenant betwixt you and Me, by breaking the terms of it, it shall be null and void on My part, as I shall withhold the blessings I promised in that covenant to confer on you on condition of your obedience.