Paul said that don't you realize that Christ is in you unless you fail the test. If you knew that Christ was in you then why would Paul say test yourself to see if your in the faith? You are in the faith if Christ is in you so there would be no reason to test.
The indwelling of Christ within the Christian is the proof that we are in the faith. If upon examination you discover that Christ is not in you, you have failed the test and are not in the faith.
What test do you give yourself that verifies that Christ is dwelling in you?
Examine yourself. Do you not recognize that Christ is in you? If He is, you will recognize it. If you do not recognize it, then He is not.
How do you recognize that Christ is in you? What does he look like in you?
Does not the Spirit bear witness with our own spirit? Do you suppose those who are indwelt by the living Christ will not recognize it?
That is the test I use for all, including myself. And it is surprising how many, when asked if they recognize that Christ lives in them, fail the test.
You seem to have quotes that I do not see on this topic.
Apparently people can fool themselves and believe that the spirit is within them. If you go to the topic A warning for Christian's on this board. Go to the site and watch the dvd about the pastor barred from heaven. You can watch the entire DVD or go to about 1hr 24min. He says that Jesus told him that the most grievous sin was His people have rejected the Spirit and created their own experiences and call it the Spirit. The pastor thought he had the Spirit but it was only his created experiences. Or maybe he still has the Spirit and just thinks he lost it.
I'm not saying that John's test is not infallible. But its less subject to ones own emotions and feelings.
21 "Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven. 22 Many will say to me on that day, 'Lord, Lord, did we not prophesy in your name, and in your name drive out demons and perform many miracles?' 23 Then I will tell them plainly, 'I never knew you. Away from me, you evildoers!'
I'm sure that most if not all of the evildoers above could have passed your test.
24 "Therefore everyone who hears these words of mine and puts them into practice is like a wise man who built his house on the rock. 25 The rain came down, the streams rose, and the winds blew and beat against that house; yet it did not fall, because it had its foundation on the rock. 26 But everyone who hears these words of mine and does not put them into practice is like a foolish man who built his house on sand. 27 The rain came down, the streams rose, and the winds blew and beat against that house, and it fell with a great crash."
John's test is a test of someone practicing what Jesus taught. He chose a test of Love and love fulfills the law.