Numbers 23:3-7

³And Balaam said to Balak, Stand by thy sacrifice, and I will go and see if God will appear to me and meet me, and the word which he shall show me, I will report to thee. And Balak stood by his sacrifice.

⁴And Balaam went to inquire of God; and he went straight forward, and God appeared to Balaam; and Balaam said to him, I have prepared the seven altars, and have offered a calf and a ram on every altar.

⁵And God put a word into the mouth of Balaam, and said, Thou shalt return to Balak, and thus shalt thou speak.

⁶And he returned to him, and moreover he stood over his whole burnt offerings, and all the princes of Moab with him; and the Spirit of God came upon him.

⁷And he took up his parable, and said, Balak king of Moab sent for me out of Mesopotamia, Out of the mountains of the east, saying, Come, curse me Jacob, And Come, call for a curse for me upon Israel.