John Gill Commentary Numbers 24:12

"And Balaam said unto Balak, Spake I not also to thy messengers that thou sentest unto me, saying," — Numbers 24:12 (ASV)

And Balaam said to Balak
In order to mitigate his wrath, and bring him into a better temper:

did I not speak also to your messengers which you sent to me :
those that came to him a second time; for to the first he said nothing of what is after related, but to the last he did much the same as he had afterwards said to Balak himself: saying,