Numbers 23:18-20 King James Version (KJV)
18 And he took up his parable, and said, Rise up, Balak, and hear; hearken unto me, thou son of Zippor:
19 God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good?
20 Behold, I have received commandment to bless: and he hath blessed; and I cannot reverse it.