Numbers 23:18

16The LORD met Balaam, and put a word in his mouth, and said, “Return to Balak, and say this.”

17He came to him, and behold, he was standing by his burnt offering, and the princes of Moab with him. Balak said to him, “What has the LORD spoken?”

18He took up his parable, and said, “Rise up, Balak, and hear! Listen to me, you son of Zippor.

19God is not a man, that he should lie, nor a son of man, that he should repent. Has he said, and he won’t do it? Or has he spoken, and he won’t make it good?

20Behold, I have received a command to bless. He has blessed, and I can’t reverse it.