They’re liars. Kent Hovind attempts to explain the contradictions in the Bible, and it’s easy. The Bible is a trap. God intentionally put in errors so he can catch the people smart enough to notice them, and drive them away from the faith. Because, apparently, he only wants irrational people to believe in him.
If I was god…I would write the book in such way that those who don’t want to believe in me any way would think they found something — “a-ha, here’s why I don’t believe” — and then they could go on with their own life, because they don’t want to believe in god any way.
I would put things in there that appear, without digging, to be contradictions. I don’t think that’s deceptive, that’s really wise for our heavenly father to weed out those who are really serious.
I know this is difficult for an ethically-challenged person like Hovind, but that actually is deceptive.