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.
21 He hath not beheld iniquity in Jacob, neither hath he seen perverseness in Israel: the Lord his God is with him, and the shout of a king is among them.
Numbers 23:19-21