Charles Ellicott Commentary Numbers 22:8

"And he said unto them, Lodge here this night, and I will bring you word again, as Jehovah shall speak unto me: and the princes of Moab abode with Balaam." — Numbers 22:8 (ASV)

Lodge here this night.— These words indicate the true character of Balaam. As a prophet of the Lord, he must have known that in seeking to curse the Israelites he was sinning against the Lord, who had chosen them for His own people.

As the Lord shall speak unto me.— It appears from this verse, as from Numbers 22:18-19, that the name of Jehovah was known to Balaam.