Numbers 23:29

New American Bible - revised edition

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

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So he took Balaam to the top of Peor, that overlooks Jeshimon.

And Balak did as Balaam had ordered, offering a bull and a ram on each altar.

While God helped the Levites to carry the ark of the covenant of the Lord, they sacrificed seven bulls and seven rams.