Numbers 23:28

Balak said to Balaam, “Neither curse them at all, nor bless them at all.”

But Balaam answered Balak, “Didn’t I tell you, saying, ‘All that the LORD speaks, that I must do’?”

Balak said to Balaam, “Come now, I will take you to another place; perhaps it will please God that you may curse them for me from there.”

Balaam said to Balak, “Build seven altars for me here, and prepare seven bulls and seven rams for me here.”

Balak did as Balaam had said, and offered up a bull and a ram on every altar.