Numbers 24:11-13

Now leave at once and go home! I said I would reward you handsomely, but the LORD has kept you from being rewarded.” Balaam answered Balak, “Did I not tell the messengers you sent me, ‘Even if Balak gave me all the silver and gold in his palace, I could not do anything of my own accord, good or bad, to go beyond the command of the LORD—and I must say only what the LORD says’?