John 14:17
Even the Spirit of reality, whom the world cannot receive, because it does not behold Him or know Him; but you know Him, because ²He abides with you and shall be in you.

    17² The very "He" who is the Spirit of reality in this verse becomes the very "I" who is the Lord Himself in v. 18. This means that the Christ who was in the flesh went through death and resurrection to become the life-giving Spirit, the pneumatic Christ. First Corinthians 15:45 confirms this. In dealing with the matter of resurrection, that verse says, "The last Adam [Christ in the flesh] became a life-giving Spirit."