2 Thessalonikeos (Thessalonians) 2:3-12 ¶ Do not be deceived because there will first be a falling away from the faith, and the revelation of the man of sin, the son of destruction, {4} who puts himself against all authority, lifting himself up over all which is named elohiym or is given worship so that he takes his seat in the Temple of Yahuwah, putting himself forward as Elohiym. {5} Do you not remember what I said when I was with you, giving you word of these things? {6} And now it is clear to you what is keeping back his revelation till the time comes for him to be seen. {7} For the secret of evil is even now at work but there is one who is keeping back the evil until he is taken out of the way {8} and then will come the revelation of that evil one, whom the Master Yahushua will put to death with the breath of his mouth and give to destruction by the revelation of His coming, {9} even the one whose coming is marked by the working of Satan, with all power and signs and false wonders, {10} and with every deceit of wrongdoing among those whose fate is destruction because they were quite without that love of the true faith by which they might have salvation. {11 And for this cause, Yahuwah will give them up to the power of deceit and they will put their faith in what is false {12} so that they all may be judged, who had no faith in what is true, but took pleasure in evil.

The son of perdition is a counterfeit of Yahuwah and will try to pass himself off as Yahuwah. For a time he will be successful but, as with all counterfeits, when the real thing shows up the impostor will be shown for what he is.

So will be the fate of allah and the false religion of islam.