Any literalist Christians among my readers?

I would really love to hear a literalist (someone who believes every word in the Bible is literally true) explain the following two verses:
Numbers 23:19
God is not a man, that he should lie, nor a son of man, that he should change his mind. Does he speak and then not act? Does he promise and not fulfill?
Exodus 32:14
Then the Lord relented and did not bring on his people the disaster he had threatened.
Check it out in different versions, if you like. BibleGateway.com is awesome for this stuff. Seriously. Even in context, these two verses are in direct conflict.