Numbers 23:29

Modern King James Version

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

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And Balak brought Balaam to the top of Peor that looks toward Jeshimon.

And Balak did as Balaam had said, and offered a bull and a ram on the altar.

And it happened as God helped the Levites who bore the ark of the covenant of Jehovah, they offered seven bulls and seven rams.