The spirit of the abomination is present at every age. In fact that is the biblical view of it according both to St Paul and St John. However there is a clue to know why the abomination is manifest in History and yet not able to engage in a full rebellion against the Church.
“Now concerning the coming of our Lord Jesus Christ and our assembling to meet Him, we beg you, brethren, not to be quickly shaken in mind or excited, either by spirit or by word, or by letter purporting to be from us, to the effect that the day of the Lord has come. Let no one deceive you in any way; for that day will not come, unless the rebellion comes first, and the man of lawlessness is revealed, the son of perdition, who opposes and exalts himself against every so-called god or object of worship, so that he takes his seat in the temple of God, proclaiming himself to be God. Do you not remember that when I was still with you I told you this? And you know what is restraining him now so that he may be revealed in his time. For 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, and the Lord Jesus will slay him with the breath of his mouth and destroy him by his appearing and his coming. The coming of the lawless one by the activity of Satan will be with all power and with pretended signs and wonders, and with all wicked deception for those who are to perish, because they refused to love the truth and so be saved. Therefore God sends upon them a strong delusion, to make them believe what is false, so that all may be condemned who did not believe the truth but had pleasure in unrighteousness.” 2 Thessalonians 2:1-12
Compare the image with this other passage:
“It was just before the Passover Feast. Jesus knew that the time had come for him to leave this world and go to the Father […] Simon Peter motioned to this disciple and said, “Ask him which one he means.” Leaning back against Jesus, he asked him, “Lord, who is it?” Jesus answered, “It is the one to whom I will give this piece of bread when I have dipped it in the dish.” Then, dipping the piece of bread, he gave it to Judas Iscariot, son of Simon. As soon as Judas took the bread, Satan entered into him.“What you are about to do, do quickly,” Jesus told him, but no one at the meal understood why Jesus said this to him. Since Judas had charge of the money, some thought Jesus was telling him to buy what was needed for the Feast, or to give something to the poor. As soon as Judas had taken the bread, he went out. And it was night.”
Notice the correlation between both passages. There are many passages in the Bible that can be used but these two are quite clearly related, in my humble opinion. What do I see here is a sequence of events.
a. The revelation of the abomination occurs before the Passover of the Lord, that is before the day of liberation at the end of days.
b. The abomination is “standing where it ought not” like Judas among the disciples in the most intimate and sacred of all moments with Jesus.
c. The abomination — until that moment — operates under a divine restriction. In the Last Supper that restriction is lifted at the same time that the abomination is revealed to those closest to Jesus (John and Peter) by an act of kindness, the giving of bread, Jesus points at him. Instead of receiving Jesus’ kindness with repentance Judas continues to conceal his evil plans and rejects the Eucharist and even a mere piece of bread dipped in the juices of the sacrificed lamb. Judas then goes and does not partake of the real Eucharist. Before going to the “darkness outside” he is released of all the restraints by the word of Jesus: “what you are about to do …” he will do by divine permission. The restrainer has been lifted just like Mark Mallett said in The Hour of Lawlessness.
d. The night will progress until at three, Judas shows up and fulfills his treason with a kiss. Pay attention to that detail because when the Antichrist is about to destroy the Church, he will feign allegiance to Christ.
The great Passover is what follows. In this first 14 of Nisan, Jesus is sacrificed. They went up to the upper room on Nisan 13 but at sundown the next day began, the day when the Paschal Lamb is sacrificed. Jesus dies at the same hour when all the lambs were being killed at the Temple. That is our first Passover, the Passover of the Passion of the Lamb. The second Passover of the Church is the Passion of the Church itself. It seems to me that by persecution and the martyrdom of the “two witnesses” is how it will come about.
Why do we know that this is the time and not merely another bitter moment in History? Because of the profusion of concurrent signs: on Earth, in the Heavens, in the calendar, in the particular behavior of the world and the Church at large, plus many prophecies.