Numbers 22:15-21 NIV

15 Then Balak sent other princes, more numerous and more distinguished than the first.
16 They came to Balaam and said: "This is what Balak son of Zippor says: Do not let anything keep you from coming to me,
17 because I will reward you handsomely1 and do whatever you say. Come and put a curse2 on these people for me."

References for Numbers 22:17

      18 But Balaam answered them, "Even if Balak gave me his palace filled with silver and gold, I could not do anything great or small to go beyond the command of the LORD my God.3

      References for Numbers 22:18

      19 Now stay here tonight as the others did, and I will find out what else the LORD will tell me.4"

      References for Numbers 22:19

          20 That night God came to Balaam5 and said, "Since these men have come to summon you, go with them, but do only what I tell you."6

          References for Numbers 22:20

          Balaam's Donkey

          21 Balaam got up in the morning, saddled his donkey and went with the princes of Moab.

          References for Numbers 22:21