Numbers 23:1, 14, 29

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

So Balak brought Balaam to the field of Zophim, to the top of Pisgah, where he built seven altars and offered a bull and a ram on each altar.

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