During the great tribulation that God sends upon this earth, we read:
Daniel 12:10 Many shall be purified, and made white, and tried; but the wicked shall do wickedly: and none of the wicked shall understand; but the wise shall understand.
God sends HIS wrath upon this earth: great hail stones, fire mingled with blood, a great mountain moves into the sea, a great star falls and the waters are poisoned and many die, the solar system changes and there is 1/3 less sun, moon, and stars, locust come out from the bottomless pit and "sting" men who have the mark of the beast upon their foreheads and hurt them for 5 months with torments of their stings, 4 angels come from the river Euphrates and kill 1/3 part of the men upon this earth, the 7th angel declares there shall be time no more. (Rev. 8 & 9)
Then the vials of the wrath of God are carried by the next 7 angels and they are poured out one by one upon the earth and the men who have the mark of the beast on their bodies: great smelly sores came on these men who worshipped the beast, the sea became as blood and every living soul in the sea died, the fountains and rivers became blood, the sun scorched men with fire, the kingdom of the beast was filled with great darkness whereby men of the beast suffered pain and gnawed their tongues, spirits of devils working miracles were loosed from the river Euphrates and the water dried up, the 7th angel pours his vial into the air and announced, "It it done," and there were voices and thunders and lightnings and a great earthquake and the cities of the nations fell and every island fled away and every mountain disappeared, and great hail fell ... "and men blasphemed God." (Rev. 16)
Revelation 9:20-21 And the rest of the men which were not killed by these plagues yet repented not of the works of their hands, that they should not worship devils, and idols of gold, and silver, and brass, and stone, and of wood: which neither can see, nor hear, nor walk:
21 Neither repented they of their murders, nor of their sorceries, nor of their fornication, nor of their thefts.
Even when the plagues came, they could not repent and they did not repent. They had taken on the mark of the beast, antichrist. They blasphemed God instead in the midst of the plagues.
"None of the wicked shall understand." (Daniel 12:10)
The main way we recognize antichrist today in the churches today is when we speak they cannot understand what we are saying for they do not have the Spirit of God but the spirit in them is another spirit.
Jesus said:
John 8:43-45 Why do ye not understand my speech? even because ye cannot hear my word.
44 Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it.
45 And because I tell you the truth, ye believe me not.
The Holy Spirit is The Spirit of Truth. They do not have the Holy Spirit in them though they say "Jesus is Lord". So like their father, the devil, when they speak they speak lies and they do not understand the truth therefore they do not repent of their sins.
* But the righteous understand ... and are therefore refined and purified in the tribulations ... and repent of their past sins.
But none of the wicked understand. (Daniel 12:10)
*****