One could reason that Jesus was not of this world. By extension, a human possessed (as opposed to being oppressed, which we all are) by spirits is in a sense an alien. I suppose it is hypothetically debateable.
"A lie can travel half way around the world while the truth is putting on its shoes." ~Mark Twain " *** “…far from science having buried God, not only do the results of science point towards his existence, but the scientific enterprise itself is validated by his existence.”- Dr.John Lennox
“The whole war between the atheist and the theist comes down to this: the atheist believes a 'what' created the universe; the theist believes a 'who' created the universe.” - Criss Jami, Killo
“The most difficult subjects can be explained to the most slow-witted man if he has not formed any idea of them already; but the simplest thing cannot be made clear to the most intelligent man if he is firmly persuaded that he knows already, without a shadow of a doubt, what is laid before him.” — Leo Tolstoy, The Kingdom of God is Within You (1894).