Cross reference
Numbers 24:12
12 And Balaam said unto Balak, Spake I not also to thy messengers that thou sentest unto me, saying,
Numbers 22:18
18 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 Jehovah my God, to do less or more.
Numbers 22:38
38 And Balaam said unto Balak, Lo, I am come unto thee: have I now any power at all to speak anything? the word that God putteth in my mouth, that shall I speak.