If I am unable to sleep when I normally should, I have insomnia.
If I am unable to remember when I normally should, I have amnesia. I may have other afflictions, which may or may not affect my memory, but saying that "I can't remember" doesn't automatically mean I have dementia or alzheimers. It DOES automatically mean, however, that I have amnesia.
(okay, the test was fairly easy)
If you need a jumping off point for research, you could always check the citations on wikipedia: https://en.wikipedia.org/wiki/Sources_for_the_historicity_of_Jesus, https://en.wikipedia.org/wiki/Historicity_of_Jesus, or read up on the works of someone like Prof. Bart Ehrman at UNC. Reza Aslan's "Zealot" is also an engaging read, though without a ton of original research.
I understand the impulse to reject what can feel like pretty "out there" religious claims, especially when you have a deep affinity for science, but it is important to be honest about the historical roots of human culture too. You don't have to accept the theological claims of religious figures to recognize their impact on the world and fairly explore their histories, people are interesting enough on their own!
Regardless of them being real of fictional, my reasoning was:
Herakles is the son of God according to greek legend,
... is the son of God according to the Bible.
Tried Jesus several times, couldn’t understand why it didn’t work.
Then I saw the answer and searched for the explanation, because I still had no clue what it was about. Honestly, apart from killing a lion, there's no specific analogy between those two. Being strong and suffering betrayal is common to virtually everyone in Greek tradition and in the Bible. Actually, one could argue that as an extra-strong warrior with weak spot, Samson is closer to Achilles than to Herakles.