1 John 2:18
Dear children, this is the last hour; and as you have heard that the antichrist is coming, even now many antichrists have come. This is how we know it is the last hour.
1 John 4:3
but every spirit that does not acknowledge Jesus is not from God. This is the spirit of the antichrist, which you have heard is coming and even now is already in the world
2 John 1:7
Many deceivers, who do not acknowledge Jesus Christ as coming in the flesh, have gone out into the world. Any such person is the deceiver and the antichrist.
1 John 2:23
No one who denies the Son has the Father; whoever acknowledges the Son has the Father also.
1 John 2:4
The man who says, "I know him," but does not do what he commands is a liar, and the truth is not in him.
You belong to your father, the devil, and you want to carry out your father's desire. He was a murderer from the beginning, not holding to the truth, for there is no truth in him. When he lies, he speaks his native language, for he is a liar and the father of lies.
Jesus answered them, "Did I not choose you twelve? Yet is not one of you a devil?"
1 John 2:19
They went out from us, but they did not really belong to us. For if they had belonged to us, they would have remained with us; but their going showed that none of them belonged to us.
As a result of this, many of his disciples returned to their former way of life and no longer accompanied him.
The antichrist has to come from among professing Christians. Obama was never one of us, so he is disqualified.