The Skeptic's Annotated Bible is an excellent and fun resource.
It's remarkable how few people criticize the Bible explicitly.
The Holy Bible is a messed-up work. That's just what happens when people talk, or write, and others pass it on. This happens naturally, and quickly and it never stops. Writing helps to maintain the consistency of a story, but writing too changes by error, by theft, loss, political influence, financial incentive, drink spillage, and inevitably in translation.
Language, too, changes with time.
And some of those stories in the Bible had to be pretty hard to believe at inception.
The Bible's got a lot of wild ideas, and some good ones, and bad. It has poetry.
But many Christians think that the Bible is the Word of God.
And American Christians have immense military and economic power.
That makes the Bible fair game for critique.