The mystery of lawlessness is already at work. Only he who now restrains it will do so until he is out of the way. And then the lawless one will be revealed, whom the Lord Jesus will kill with the breath of His mouth and bring to nothing by the appearance of His coming. The coming of the lawless one is by the activity of Satan with all power and false signs and wonders, and with all wicked deception for those who are perishing, because they refused to love the truth and so be saved. Therefore God sends them a strong delusion, so that they may believe what is false, in order that all may be condemned who did not believe the truth but had pleasure in unrighteousness (2 Thessalonians 2:7-12)
They will believe the lies, because they cannot accept the truth. They do not have the Spirit of Truth in them, so they will not be able to accept truth, so God will turn His back on them, because they refuse to acknowledge Him. They will be left by themselves to accept all sorts of lies, believing it to be the truth, and this illusion will overcome them and death will the their final result. Not so for God’s people. God’s Spirit will continue to feed them with God’s truth, and they will live forever with Him. I will ask the Father, and He will give you another Helper, to be with you forever, even the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows him. You know Him, for He dwells with you and will be in you. John 14:16-17. Allow the Spirit of truth to be the teacher that you rely on to seal you for redemption. God bless you.