Numbers 23:1, 14, 29

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

So Balak took him to Lookout Field  on top of Pisgah,  built seven altars, and offered a bull and a ram on each altar.

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