Think that even among saved, there is a spirit ofBondgae in the sense that they have not yet really understood saved by grace alone, and are still trying to use behavior to try to make themselves "feel" that God still loves them. That is one of the main reasons Luther came to grace, grace, God's grace!
Jesus told his disciples they would know the truth, and the truth would set them free. How many people who claim the name of Christ, are deceived and actually believing in and following a false Christ?
2 Timothy 3:12-15 New King James Version (NKJV)
12 Yes, and all who desire to live godly in Christ Jesus will suffer persecution.
13 But evil men and impostors will grow worse and worse, deceiving and being deceived.
14 But you must continue in the things which you have learned and been assured of, knowing from whom you have learned them,
15 and that from childhood you have known the Holy Scriptures, which are able to make you wise for salvation through faith which is in Christ Jesus.
Matthew 24
21 For then there will be great tribulation, such as has not been since the beginning of the world until this time, no, nor ever shall be. 22 And unless those days were shortened, no flesh would be saved; but for the elect’s sake those days will be shortened.
23 “Then if anyone says to you, ‘Look, here is the Christ!’ or ‘There!’ do not believe it. 24 For false christs and false prophets will rise and show great signs and wonders to deceive, if possible, even the elect. 25 See, I have told you beforehand.
26 “Therefore if they say to you, ‘Look, He is in the desert!’ do not go out; or ‘Look, He is in the inner rooms!’ do not believe it.
27 For as the lightning comes from the east and flashes to the west, so also will the coming of the Son of Man be. 28 For wherever the carcass is, there the eagles will be gathered together. (When Christ returns there is going to be a lot dead bodies eaten by birds, the great supper of God mentioned in Revelation 19:17-18)
Only the elect will not be deceived, only they will know the truth, because God will give to them an anointing to know and love the truth. Deceived people will worship a false Christ and perish.
Luke 21:8 And He said: “Take heed that you not be deceived. For many will come in My name, saying, ‘I am He,’ and, ‘The time has drawn near.’ Therefore do not go after them.
Then 2 Thessalonians 2, God has loved the 'US' whom He has chosen to obtain the salvation who have the eternal consolation and good hope by grace whom He chose from the beginning to be made holy and have belief in the truth (Christ).
There is no such love and consolation for those on whom God sends a strong delusion to believe the lie, they are evil and will share the fate of evil. They don't believe because they refuse to believe as they have not been chosen from the beginning to be saved.
Pretty damning of the whole human race, this judgement sent by God shows them to be what they are, and that is they are of Satan and not of God. People should understand, born only into the world as a citizen of this world means your dead in sin, but born anew into the kingdom of God, now your citizenship is in heaven with God and Christ and that is where we long to be.
9 The coming of the lawless one is according to the working of Satan, with all power, signs, and lying wonders, 10 and with all unrighteous deception among those who perish, because they did not receive the love of the truth, that they might be saved. 11 And for this reason God will send them strong delusion, that they should believe the lie, 12 that they all may be condemned who did not believe the truth but had pleasure in unrighteousness.
Stand Fast
13 But we are bound to give thanks to God always for you, brethren beloved by the Lord, because God from the beginning chose you for salvation through sanctification by the Spirit and belief in the truth, 14 to which He called you by our gospel, for the obtaining of the glory of our Lord Jesus Christ. 15 Therefore, brethren, stand fast and hold the traditions which you were taught, whether by word or our epistle.
16 Now may our Lord Jesus Christ Himself, and our God and Father, who has loved us and given us everlasting consolation and good hope by grace, 17 comfort your hearts and establish you in every good word and work.