Numbers 23:24-26

²⁴See, Israel comes up like a she-lion, lifting himself up like a lion: he will take no rest till he has made a meal of those he has overcome, drinking the blood of those he has put to death.

²⁵Then Balak said to Balaam, If you will not put a curse on them, at all events do not give them a blessing.

²⁶But Balaam in answer said to Balak, Did I not say to you, I may only do what the Lord says?