Numbers 24:13
If Balak would give me his palace full of silver and gold, I cannot go beyond the commandment of the Lord to do either good or evil of my own will, but whatever the Lord tells me I must speak'?
Numbers 16:28
Then Moses said, "This is how you will know that the Lord has sent me to do all these works, for I have not done them of my own will.
Numbers 22:18
Balaam replied to the servants of Balak, "Even if Balak would give me his palace full of silver and gold, I could not transgress the commandment of the Lord my God to do less or more.
Numbers 22:20
God came to Balaam that night, and said to him, "If the men have come to call you, get up and go with them; but the word that I will say to you, that you must do."