That equivocation is not Scriptural. I don't believe God is an Indian-giver (oh, how politically incorrect). If God has numbered a man as one of Christ's sheep from before the foundation of the world, that man, at a time of God's choosing, will be indwelled by the Holy Spirit who will lead him to salvation. No road is perfectly straight. We err and are disciplined along the way. But Christ says He is in us and will never leave us, and I believe Him.
"Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you. I will not leave you comfortless: I will come to you. Yet a little while, and the world seeth me no more; but ye see me: because I live, ye shall live also. At that day ye shall know that I am in my Father, and ye in me, and I in you." -- John 14:17-20
"Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?" -- 1 Corin. 3:16
"What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own?" -- 1 Corin. 6:19"Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you." -- Luke 17:21
That's only a fraction of God's word which tells us Christ is within all believers.
Revelation 20:1
Then I saw an angel coming down from heaven, having the key to the bottomless pit and a great chain in his hand.
20:2 He laid hold of the dragon, that serpent of old, who is the Devil and Satan, and bound him for a thousand years;
20:3 and he cast him into the bottomless pit, and shut him up, and set a seal on him, so that he should deceive the nations no more till the thousand years were finished. But after these things he must be released for a little while. .
You mean locked up within(a human) as imprisoned or merged or mixed?..
Maybe God cannot go in and out of a christians spirit/soul..
Is that what you are saying?..
Is not annointing(oil/perfume) a picture Gods presence?..
The shekinah is Gods presence..
Are you saying every christian 24/7 365 has the shekinah within them?..
I believe neither of us has the last word on Gods presence.. nor does anyone(I know of)..
If you know more than me about Gods presence..
I'm all ears.. even to suppositions.. Could be a groovey side bar..
My experience is periodic presence of God..
I've experienced God within but he/it leaves..
If you have greater(or different) experience, I'm willing to learn..