Numbers 22:18

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 24:13

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’?