Numbers 22:13 (KJV)

And he said unto them, Lodge here this night, and I will bring you word again, as the LORD shall speak unto me: and the princes of Moab abode with Balaam.

And God came unto Balaam, and said, What men are these with thee?

And Balaam said unto God, Balak the son of Zippor, king of Moab, hath sent unto me, saying,

Behold, there is a people come out of Egypt, which covereth the face of the earth: come now, curse me them; peradventure I shall be able to overcome them, and drive them out.

And God said unto Balaam, Thou shalt not go with them; thou shalt not curse the people: for they are blessed.

And the princes of Moab rose up, and they went unto Balak, and said, Balaam refuseth to come with us.

And Balak sent yet again princes, more, and more honourable than they.

And they came to Balaam, and said to him, Thus saith Balak the son of Zippor, Let nothing, I pray thee, hinder thee from coming unto me:

For I will promote thee unto very great honour, and I will do whatsoever thou sayest unto me: come therefore, I pray thee, curse me this people.

And Balaam answered and said unto the servants of Balak, If Balak would give me his house full of silver and gold, I cannot go beyond the word of the LORD my God, to do less or more.