John Gill Commentary Numbers 23:17

"And he came to him, and, lo, he was standing by his burnt-offering, and the princes of Moab with him. And Balak said unto him, What hath Jehovah spoken?" — Numbers 23:17 (ASV)

And when he came to him, behold, he stood by his
burnt offering
As before; (Numbers 23:6) and the princes of Moab with him; Jarchi observes, that before it is said, all the princes of Moab, but not so here; for when they saw there was no hope of succeeding, some of them went away, and only some were left:

and Balak said unto him, what has the Lord spoken ?
being in haste to know what it was, whether agreeable or not.