I think some of the people casting stones on this thread should ask themselves what is the causal (causal not the rational - big distinction) reason they are atheists? What circumstances (not inner ponderings) led you to atheism (or to religion for that matter). I would put it to you if the important intellectual figures in your life were religious, you would be of their religion too. Religious belief is a very human thing you are taking people to task over.
I've been accused of casting stones, so I'll have a go.
I grew up in a secular family. This was unusual at that place and time. Everyone I knew had some religion, even if they rarely or never went to a place of worship, and most did at least on special occasions. I was brought up to respect all religions, but it just wasn't something we did. And that bothered me. They were all so attractive in their way -- the rituals, the music, all the rest of it.
To my childish mind, there was obviously a god, and this god must have given us a correct religion to live by. But which one was it? I knew Jews, and Catholics, and Protestants of various flavours; I didn't know any Muslims or Hindus or members of other faiths, but I knew they existed, and there was no reason to think that a particular religion wasn't the right one just because I didn't happen to be around its adherents.
I went through agonies between the ages of maybe eight and 12 or so. One week one set of beliefs and rituals seemed the right one, next week it was another. I prayed to this god or gods to give me a sign. How about a dream? That's the sort of thing gods do, in many cultures. But it never happened.
Then I read a novel where a character says that expecting humans to pick the right religion from all the ones that were available was a pretty sloppy way to run a universe. And I suddenly felt liberated; the scales fell from my eyes. Of course it was sloppy. The whole thing was really very silly.
Some years later, I learnt about the textual transmission of the Bible, which crushed any potential tendencies for taking it seriously as the revealed word of a supernatural deity. (You're the only person to bring up the problem with the story about the woman taken in adultery; I've never met a believer who was aware of the issue.)
So my question to those who are committed to a particular form of religion is: there are dozens of creeds positing things for which there is absolutely no evidence. If yours is right, they have to be wrong, at least in the literal sense. To take one glaring example: either Jesus is the son of god and the way to eternal life, as the Christians say, or he's one of the prophets, but not the last or the most important one, as Muslims say, or nobody in particular, just an unconventional preacher, as everyone else says. They can't all be right. What reason do you have for deciding to believe your particular set of improbable and unprovable teachings?
They never really answer that one.