When you dig into the Christian roots and analysis of the Bible, you find that some things are... not very well attested.
Trinitarianism. Divinity of Jesus was a big debate. Multi-Personness of God.
Hell. Pick your edition of Hell. Probably not adequately supported by scholarship for what was believed.
If Christianity is the penultimate cap on Judaism, then why did it abandon monotheism? Why did it drop the Jewishness ASAP?
Was did the church teach in the first 100 years after the last NT epistles, and how did it navigate the shift from "Jesus is coming back real soon" to "we have families, people are dying, being born, and life is.... just running along as normal". The doctrines of the NT don't address that.
Why did the church turn into this priest/eucharist thing after Paul left the scene? Why was the sermon on the mount ignored so thoroughly?
Why is Christianity so conducive to the violent rulership that it was adopted?
Why did Hitler get the support of Christians?
Why did chattel slavery get so theologically backed?
How can MLK be a preacher, and yet Christianity - Protestant Christianity - in the 20s support the racism of the US?
I dug too deep. This tension is too hard for me. Evangelicalism doesn't harmonize with the far reaches of the Christian message. Neither does Luther... or even Calvin.
I am certain there's truth in Christianity, and it's located around Jesus. Less so, Paul. But 2000 years of traditions and shifting cultural expectations has crusted all this over. You can't get what's going on in the NT without pulling open the scholar's books. Scottish Common Sense Realism (i.e., the idea you can learn the Bible without studying the background context), has played itself out, and it's been a real mess.
Fundamentally, a valid Christian faith should have been rooted, early on, in Judaism. Not just in the epistles, but in the later letters, until the final split. That split took a while, we know today. Not just by the end of Paul's life. A serious engagement with what their claims were regarding Jesus - the Jewish messiah.
I don't think they did. They dumped it. At least in the early church fathers letters I've read.
But the Divine has been found in Christianity, and in Judaism. And Islam, if you inquire a little bit.
Can you live within the Divine in Christianity? Yes. You have to walk out of much of the churches (at least in your own self), and start living in the Myth. The Great Story of how we, as people, encountered the Divine and wrote it down. But it's very broken in the Christian theological diaspora. The metasystem demands a Right Answer. And honestly, wandering off and following the Stylites or, perhaps, wandering into the UU or other systems with a very tenous connection with Jesus... that just seems empty.
So I'm looking extremely hard at Judaism. Because, frankly, it makes a lot more sense than Christianity. It addresses the major logical and historical concerns I'm seeing more and more.