Moses
Numbers 24:10ESV·traditional attribution

And Balak’s anger was kindled against Balaam, and he struck his hands together. And Balak said to Balaam, “I called you to curse my enemies, and behold, you have blessed them these three times.

John Calvin Reformed @genevareformer

10. And Balak’s anger was kindled against Balaam. Inasmuch as the obstinacy of the wicked is not overcome, so that they should submit themselves to God, when He would bring their lusts under the yoke, it must needs be that, when they are still further pressed, they are carried away into passion.

Matthew Henry Presbyterian @wholebiblehenry

We have here the conclusion of this vain attempt to curse Israel, and the total abandonment of it. 1. Balak made the worst of it. He broke out into a rage against Balaam (Num 24:10), expressed both in words and gesture the highest degree of vexation at the disappointment; he smote his hands together, for indignation, to see all his measures thus broken, and his project baffled.

Commenting on Numbers 24:10-14

John Gill Reformed Baptist @doctorgill

And Balak's anger was kindled against Balaam,.... He had bore much and long, but he could bear no longer, he was quite impatient, his last words more especially must exceedingly nettle him: and he smote his hands together; as expressive of his indignation, vexation, and disappointment: and Balak said unto Balaam, I called thee to curse my enemies; he had sent princes to him, one...