antichrist is a spirit as Christ is the Spirit of Father, hence God is in Christ reconcilling the world to himself...............

why does the world need to be reconcilled? Because it belongs to antichrist............the opposing (anti is against) Christ

neither Jesus or antichrist is recognized physically because Jesus appears in his saints in the last days, and antichrist appears after that.........which is why it says let no man deceive you, antichrist has to be revealed before Christ gets rid of him.............with the brightness of his coming and the truth of his appearing......

if antichrist is not yet revealed to a person, Christ is not yet in him because Christ the light reveals the great darkness............the darkness never reveals itself which is why it says people who sat in great darkness saw the light spring up ........(thats within us because it happened to me 20 years ago):

the antichrist is revealed in the inner court, the holy place of the temple, the place only Israel could go, hence antichrist is revealed within the heart because Israel is the heart of the temple and God is concerned about the heart.........the inner MAN of the heart........not the outside or APPEARANCES of things