Probably one reason and one reason only.
In the Bible, it said that after Jesus was killed and left this earth, then he would return as his Spirit, and reveal himself to as many that asked…
If this is real, then the “other" stuff they said about him is real too.
This I sought after, because IF I was not able to meet him in his spiritual form like he promised, then what good was it to believe the rest of the stuff…
I wanted to meet God my whole life, problem was I did not know who God was, so I never knew who I was looking for.
But, then one day I started to read about this Jesus guy… (and the Bible said that he would manifest himself to anyone who asks, so then I started looking for Jesus, it was clear (as written in the Bible) who this guy was, even being manifested as a human at on time…
So my search honed in on Jesus because I was able to know exactly who he was, and it wasn't long before he manifested himself to me “exactly” as the Bible said he promised to do.
So, when the Bible said something, and God backed it up (as in manifesting himself), then I don't question it, because God himself gives it validity.