Numbers 23:17-19

¹⁷And he returned to him: and he also was standing by his whole burnt sacrifice, and all the princes of Moab with him; and Balak said to him, What has the Lord spoken?

¹⁸And he took up his parable, and said, Rise up, Balak, and hear; Hearken as a witness, thou son of Zippor.

¹⁹God is not as man to waver, Nor as the son of man to be threatened; Shall he say and not perform? Shall he speak and not keep to his word?