Numbers 23:26

"But Balaam answered and said unto Balak, Told not I thee, saying, All that the LORD speaketh, that I must do?"

Cross References (ranked by relevance)

Then Peter and the other apostles answered and said, We ought to obey God rather than men.

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.

2 Chronicles 18:13

And Micaiah said, As the LORD liveth, even what my God saith, that will I speak.

Numbers 22:38

And Balaam said unto Balak, Lo, I am come unto thee: have I now any power at all to say any thing? the word that God putteth in my mouth, that shall I speak.

1 Kings 22:14

And Micaiah said, As the LORD liveth, what the LORD saith unto me, that will I speak.