Numbers 24:13
If Balak would give me his house full of silver and gold, I could not go beyond the commandment of the LORD, to do either good or bad of my own mind; but what the LORD saith, that will I speak?
Numbers 16:28
And Moses said, by this ye shall know that the LORD hath sent me to do all these works: for I have not done them of my own mind.
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 could not go beyond the word of the LORD 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 thee, rise and go with them; but yet the word which I shall say to thee, that shalt thou perform.