Who is a liar but he that denies that Jesus is the Christ? He is antichrist, that denies the Father and the Son. 1 John 2:22

Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition; who opposes and exalts himself above all that is called God, or that is worshipped; so that he as God sits in the temple of God, showing himself that he is God. 2 Thessalonians 2:3-4

He shall come from heaven with glory, when the man of apostasy, who speaks strange things against the Most High, shall venture to do unlawful deeds on the earth against us the Christians… Justin Martyr (A.D. 160) Ante-Nicene Fathers vol.1 pg.253-254

But also by means of the events which shall occur in the time of Antichrist is it shown that he, being an apostate and a robber, is anxious to be adored as God; and that, although a mere slave, he wishes himself to be proclaimed as a king. For he (Antichrist) being endued with all the power of the devil, shall come, not as a righteous king, nor as a legitimate king, [i.e., one] in subjection to God, but an impious, unjust, and lawless one; as an apostate, iniquitous and murderous; as a robber, concentrating in himself [all] satanic apostasy, and setting aside idols to persuade [men] that he himself is God… Daniel too, looking forward to the end of the last kingdom, i.e., the ten last kings, amongst whom the kingdom of those men shall be partitioned, and upon whom the son of perdition shall come. Irenaeus (A.D. 180) Ante-Nicene Fathers vol.1 pg. 553

That is, for three years and six months, during which time, when he (The Antichrist) comes, he shall reign over the earth. Irenaeus (A.D. 180) Ante-Nicene Fathers vol.1 pg. 554

Moreover, another danger, by no means trifling, shall overtake those who falsely presume that they know the name of Antichrist. For if these men assume one [number], when this [Antichrist] shall come having another, they will be easily led away by him, as supposing him not to be the expected one, who must be guarded against…"When they shall say, Peace and safety, then sudden destruction shall come upon them." And Jeremiah does not merely point out his sudden coming, but he even indicates the tribe from which he shall come, where he says, "We shall hear the voice of his swift horses from Dan; the whole earth shall be moved by the voice of the neighing of his galloping horses: he shall also come and devour the earth, and the fullness thereof, the city also, and they that dwell therein." This, too, is the reason that this tribe is not reckoned in the Apocalypse along with those which are saved. It is therefore more certain, and less hazardous, to await the fulfillment of the prophecy. Irenaeus (A.D. 180) Ante-Nicene Fathers vol.1 pg.559

We will not, however, incur the risk of pronouncing positively as to the name of Antichrist; for if it were necessary that his name should be distinctly revealed in this present time, it would have been announced by him who beheld the apocalyptic vision. Irenaeus (A.D. 180) Ante-Nicene Fathers vol.1 pg. 559

But when this Antichrist shall have devastated all things in this world, he will reign for three years and six months, and sit in the temple at Jerusalem; and then the Lord will come from heaven in the clouds…Irenaeus (A.D. 180) Ante-Nicene Fathers vol.1 pg.560

Enoch no doubt was translated, and so was Elijah; nor did they experience death: it was postponed, (and only postponed,) most certainly: they are reserved for the suffering of death, that by their blood they may extinguish Antichrist. Tertullian (A.D. 198) Ante-Nicene Fathers vol.3 pg. 227

In the crisis of the last moment, and from their instantaneous death, whilst encountering the oppressions of Antichrist, undergo a change, obtaining therein not so much a divestiture of body as "a clothing upon" with the vesture which is from heaven. Tertullian (A.D. 198) Ante-Nicene Fathers vol.3 pg.455

"Let no man deceive you by any means. For that day shall not come, unless indeed there first come a falling away," he means indeed of this present empire, "and that man of sin be revealed," that is to say, Antichrist, "the son of perdition, who opposes and exalts himself above all that is called God or religion; so that he sits in the temple of God, affirming that he is God. Remember you not, that when I was with you, I used to tell you these things? And now you know what detains, that he might be revealed in his time. For the mystery of iniquity does already work; only he who now hinders must hinder, until he be taken out of the way." What obstacle is there but the Roman state, the falling away of which, by being scattered into ten kingdoms, shall introduce Antichrist upon (its own ruins)? "And then shall be revealed the wicked one, whom the Lord shall consume with the spirit of His mouth, and shall destroy with the brightness of His coming: even him whose coming is after the working of Satan, with all power, and signs, and lying wonders, and with all deceivableness of unrighteousness in them that perish." Tertullian (A.D. 198) Ante-Nicene Fathers vol.3 pg. 563

When, then, we read, "Go, my people, enter into your closets for a little season, until my anger pass away," we have in the closets graves, in which they will have to rest for a little while, who shall have at the end of the world departed this life in the last furious onset of the power of Antichrist. Why else did He use the expression closets, in preference to some other receptacle, if it were not that the flesh is kept in these closets or cellars salted and reserved for use, to be drawn out thence on a suitable occasion? …it appears that by the very phrase which he uses, "Until His anger pass away," which shall extinguish Antichrist, he in fact shows that after that indignation the flesh will come forth from the sepulcher, in which it had been deposited previous to the bursting out of the anger. Now out of the closets nothing else is brought than that which had been put into them, and after the extirpation of Antichrist shall be busily transacted the great process of the resurrection. Tertullian (A.D. 198) Ante-Nicene Fathers vol.3 pg.565

Isaiah said: This is the man who moves the world anti so many kings, and under whom the land shall become desert. Hear you how the prophet foretold concerning him. I have said nothing elaborately, but negligently. Then, doubtless, the world shall be finished when he shall appear. He himself shall divide the globe into three ruling powers, when, moreover, Nero shall be raised up from hell, Elias shall first come to seal the beloved ones; at which things the region of Africa and the northern nation, the whole earth on all sides, for seven years shall tremble. But Elias shall occupy the half of the time, Nero shall occupy half. Then the whore Babylon, being reduced to ashes, its embers shall thence advance to Jerusalem; and the Latin conqueror shall then say, I am Christ, whom you always pray to; and, indeed, the original ones who were deceived combine to praise him. He does many wonders, since his is the false prophet. Especially that they may believe him, his image shall speak. The Almighty has given it power to appear such. The Jews, recapitulating Scriptures from him, exclaim at the same time to the Highest that they have been deceived. Commodianus (A.D. 198) Ante-Nicene Fathers vol.4 pg. 210-211

"After threescore and two weeks the times will be fulfilled, and one week will make a covenant with many; and in the midst (half) of the week sacrifice and oblation will be removed, and in the temple will be the abomination of desolations." For when the threescore and two weeks are fulfilled, and Christ is come, and the Gospel is preached in every place, the times being then accomplished, there will remain only one week, the last, in which Elias will appear, and Enoch, and in the midst of it the abomination of desolation will be manifested, viz., Antichrist, announcing desolation to the world. And when he comes, the sacrifice and oblation will be removed, which now are offered to God in every place by the nations. Hippolytus (A.D. 225) Ante-Nicene Fathers vol.5 pg. 182

Thus, then, does the prophet set forth these things concerning the Antichrist, who shall be shameless, a war-maker, and despot, who, exalting himself above all kings and above every god, shall build the city of Jerusalem, and restore the sanctuary. Him the impious will worship as God, and will bend to him the knee, thinking him to be the Christ. Hippolytus (A.D. 225) Ante-Nicene Fathers vol.5 pg.184

For the deceiver seeks to liken himself in all things to the Son of God. Christ is a lion, so Antichrist is also a lion; Christ is a king, so Antichrist is also a king. The Savior was manifested as a lamb; so he too, in like manner, will appear as a lamb, though within he is a wolf. The Savior came into the World in the circumcision, and he will come in the same manner. The Lord sent apostles among all the nations, and he in like manner will send false apostles. The Savior gathered together the sheep that were scattered abroad, and he in like manner will bring together a people that is scattered abroad. The Lord gave a seal to those who believed on Him, and he will give one like manner. The Savior appeared in the form of man, and he too will come in the form of a man. The Savior rose up and showed His holy flesh like a temple, and he will raise a temple of stone in Jerusalem. Hippolytus (A.D. 225) Ante-Nicene Fathers vol.5 pg. 206

Thus did the Scriptures preach before-time of this lion and lion's whelp. And in like manner also we find it written regarding Antichrist. For Moses speaks thus: "Dan is a lion's whelp, and he shall leap from Bashan." But that no one may err by supposing that this is said of the Savior, let him attend carefully to the matter. "Dan," he says, "is a lion's whelp;" and in naming the tribe of Dan, he declared clearly the tribe from which Antichrist is destined to spring. Hippolytus (A.D. 225) Ante-Nicene Fathers vol.5 pg. 207

By the beast, then, coming up out of the earth, he means the kingdom of Antichrist; and by the two horns he means him and the false prophet after him…For he will act with vigor again, and prove strong by reason of the laws established by him; and he will cause all those who will not worship the image of the beast to be put to death…For, being full of guile, and exalting himself against the servants of God, with the wish to afflict them and persecute them out of the world, because they give not glory to him, he will order incense-pans to be set up by all everywhere, that no man among the saints may be able to buy or sell without first sacrificing; for this is what is meant by the mark received upon the right hand. And the word--"in their forehead"--indicates that all are crowned, and put on a crown of fire, and not of life, but of death. Hippolytus (A.D. 225) Ante-Nicene Fathers vol.5 pg. 214

For he will call together all the people to himself, out of every country of the dispersion, making them his own, as though they were his own children, and promising to restore their country, and establish again their kingdom and nation, in order that he may be worshipped by them as God. Hippolytus (A.D. 225) Ante-Nicene Fathers vol.5 pg. 215