"If an alien showed up in ugly skin with a creepy face and told you about the secrets of the universe, would you believe them? What if that "alien" was another imperfect human?"
You've never seen me face-to-face, but I exist. You know I exist because I type things on a keyboard tablet somewhere away from where you are and it shows up on your screen. Why can't you believe Jehovah from somewhere higher had somebody write something down on a tablet too? Who do you think invented mitochondria? Don't you think the one who made mitochondria has enough energy to send a message via a book? If you can believe some aliens somewhere could beam somebody down from a space ship, don't you think a higher life form could beam somebody down to Mary's womb? Why is that so difficult for you to believe?
In the movies the aliens say "I come in peace" or something like that.
Here is the "alien" (aka, foreign to you) message I come with (but it's actually the same message you heard from the beginning): "I am a witness of Jehovah. He's real. God is Love. He's reaching out to you. Quit rejecting Him."
(Looks like the alien avatar I'm wearing has purple skin, two red claws, a horn and four legs. Kinda ugly, lol!😆)