4 Bible Verses about How God Can't Lie

The Lord God is not a man, that he can lie; neither the son of a man, that he can repent! Should he say, and not do? Or should he speak, and not make it good?

And thereto he that giveth victory to Israel, will not beguile nor repent: for he is not a man, that can repent."

that by two immutable things - in which it was impossible that God should lie - we might have perfect consolation, which have fled, for to hold fast the hope that is set before us:

I have sworn once by my holiness, that I will not fail David.