Christ does not indwell those He never knew, in Matthew 7:23.
Then explain this from this faithful saying for why we are still to call former believers and not just unrepentant saved believers to depart from iniquity with His help so they too can be received by the Bridegroom as that vessel unto honor in His House.;
2 Timothy 2:10 Therefore I endure all things for the elect's sakes, that they may also obtain the salvation which is in Christ Jesus with eternal glory.
11 It is a faithful saying: For if we be dead with him, we shall also live with him:
12 If we suffer, we shall also reign with him:
if we deny him, he also will deny us:
13 If we believe not, yet he abideth faithful: he cannot deny himself.
Paul goes on to give an example of a former believer and yet "nevertheless..."
2 Timothy 2:18 Who concerning the truth have erred, saying that the resurrection is past already; and overthrow the faith of some.
19 Nevertheless the foundation of God standeth sure, having this seal, The Lord knoweth them that are his. And, let every one that nameth the name of Christ depart from iniquity.
20 But in a great house there are not only vessels of gold and of silver, but also of wood and of earth; and some to honour, and some to dishonour.
21 If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master's use, and prepared unto every good work.
So there is such a thing as a vessel unto dishonor in His House, the vessels of wood and earth, those resurrected after the great tribulation for not looking to Jesus Christ daily to resists sin and to be ready & willing to go when the Bridegroom comes.
He abides still in those He denied that verbally deny Him or by works, they deny Him as that is why He is denying them.
Titus 1:16 They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work
reprobate. < --- reprobate means disqualified from attending the Marriage Supper in Heaven.
What the church fail to do in excommunicating the unrepentant saved believer living in sin or engaging in works of iniquity, be it religious work or supernatural phenomenon that denies Him, He will deny them at the rapture, but He will burn off of that foundation all that offends and defiles that temple of God as He will finish His work even in those left behind.
1 Corinthians 3:10 According to the grace of God which is given unto me, as a wise masterbuilder, I have laid the foundation, and another buildeth thereon.
But let every man take heed how he buildeth thereupon. 11 For other foundation can no man lay than that is laid, which is Jesus Christ. 12 Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble;
13 Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is.
14 If any man's work abide which he hath built thereupon, he shall receive a reward.
15 If any man's work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.
16 Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you? 17 If any man defile the temple of God, him shall God destroy; for the temple of God is holy, which temple ye are.
So in that day of fire, he will be denied by Him and left behind to die on earth,
but he is still saved per verse 15. This is where the vessels unto dishonor comes from that are still in His House and why He is warning believers to be ready or else.