Numbers 23:13-15
23:13 Balak said to him, “Please come with me to another place from which you can observe them. You will see only a part of them, but you will not see all of them. Curse them for me from there.”
23:14 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.
23:15 And Balaam said to Balak, “Station yourself here by your burnt offering, while I meet the Lord there.