Moses
Deuteronomy 9:23ESV·traditional attribution

And when the LORD sent you from Kadesh-barnea, saying, ‘Go up and take possession of the land that I have given you,’ then you rebelled against the commandment of the LORD your God and did not believe him or obey his voice.

Matthew Henry Presbyterian @wholebiblehenry

That they might have no pretence to think that God brought them to Canaan for their righteousness, Moses here shows them what a miracle of mercy it was that they had not long ere this been destroyed in the wilderness: "Remember, and forget not, how thou provokedst the Lord thy God (Deu 9:7); so far from purchasing his favour, thou hast many a time laid...

Commenting on Deuteronomy 9:7-29

John Gill Reformed Baptist @doctorgill

You have been rebellious against the Lord from the day that I knew you. Either from the time he first had and took knowledge of them and visited them, before his departure from Egypt to the land of Midian; (see Exo 2:11 compared with Act 7:25); or from the time that he was sent to them to deliver them out of Egypt; see Exo 5:20...

Geneva Bible Notes Reformed @genevanotes

Likewise when the LORD sent you from Kadeshbarnea, saying, Go up and possess the land which I have given you; then ye rebelled against the commandment of the LORD your God, and ye believed him not, nor hearkened to his voice. (n) At the return of the spies.