Numbers 23:4

1 And Balaam said to Balak, Make me here seven altars and get ready seven oxen and seven male sheep.

2 And Balak did as Balaam had said; and Balak and Balaam made an offering on every altar of an ox and a male sheep.

3 Then Balaam said to Balak, Take your place by your burned offering, and I will go and see if the Lord comes to me: and I will give you word of whatever he says to me. And he went to an open place on a hill.

4 And God came to Balaam, and Balaam said to him, I have made ready seven altars, offering an ox and a male sheep on every altar.

5 And the Lord put words in Balaam's mouth, and said, Go back to Balak, and this is what you are to say.

6 So he went back to him where he was waiting by his burned offering with all the chiefs of Moab.

7 And in the words which the Lord had given him he said, From Aram Balak has sent for me, the king of Moab from the mountains of the East: come, put curses on Jacob for me and be angry with Israel.