The Antichrist and the Second Advent

The reason he is allowed to come

Because that the Jews did not receive the Lord Jesus Christ who was the Son of God and God, but received the impostor who calls himself God, he was allowed to come.

Because they received not the love of the truth that they might be saved, FOR THIS CAUSE GOD SHOULD SEND THEM A STRONG DELUSION that they should believe a lie: that they all might be damned who believed not the truth but had pleasure in unrighteousness." 2 Thess ii: 10,11,12

"Why then, you say, did God permit this to be ? and what dispensation is this ? and what is the advantage of his coming, if it takes place for the ruin of our race ? Fear not, beloved but hear Him saying: 'In them that are perishing' 2 Thess. ii: 10 What then is the advantage ? for both if he had come, and if he had not come, they would not have believed in Christ; HE COMES THEREFORE TO CONVICT THEM, that is, in order that they might be without excuse. 'who believed not the truth, but pleasure in unrighteousness.' He said "that they might be judged" (condemned), He does not say that they might be punished; for even before this they were about to be punished.

"He came that there may be no occasion to those who would say: "We did not believe, because we have heard that there is one God, now, Christ said He was God (i.e. came in the name of God), and Antichrist also likewise", for when he comes (Antichrist), he will bring nothing good, but all things unlawful, and yet he was believed from false signs." St. John Chrysostom.