Numbers 24:13
If Balak would give me his house full of silver and gold, I cannot go beyond the mouth of Jehovah, to do good or bad of my own mind. What Jehovah said, that I will speak.
Numbers 16:28
And Moses said, By this you shall know that Jehovah has sent me to do all these works, and that not from my own heart.
Numbers 22:18
And Balaam answered and said to 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 22:20
And God came to Balaam at night and said to him, If the men come to call you, rise up, go with them. But still, the word which I shall say to you, that you shall do.