Revelation 13’s 42 months is symbolic of a period of intense persecution and opposition to God, not a literal three-and-a-half-year rule of a specific political entity like the "8th king."
How long from Jesus being baptized and starting his ministry to him returning to heaven?
Equating the MOL with the 8th king and other apocalyptic figures (e.g., King of the North, small horn) is speculative and unsupported by Scripture. Paul’s reference to the MOL in 2 Thessalonians 2 speaks to a spiritual rebellion, which Catholic teaching sees as applicable across history, not confined to one individual or regime. Your claim that the MOL sits in God’s temple (2 Thessalonians 2:4) being the same as the 8th king in Revelation 17 misreads both texts. The "temple" in Paul’s writing likely refers to the Church or God's spiritual dwelling, not a literal structure tied to a specific political entity.
First off, I never said the MOL sits in a literal structure. I said he is said to sit in God's temple and the 8th king is said to be in God's holy place and that the temple and holy place are the same place.
As far as what the temple and holy place is, it is God's people all around the world.
In regard to the 8th king/MOL/KOTN/DT etc., before I say more, answer these questions first and mull for a bit on those following Scriptures.
When and how do each of the following come to their end:
8th king (Rev 17)
beast and false prophet (Rev 13)
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[15 “Therefore, when you catch sight of the disgusting thing that causes desolation, as spoken about by Daniel the prophet, standing in a holy place (let the reader use discernment),][31 And arms will stand up, proceeding from him; and they will profane the sanctuary, the fortress, and remove the constant feature. “And they will put in place the disgusting thing that causes desolation. 32 “And those who act wickedly against the covenant, he will lead into apostasy by means of smooth words. But the people who know their God will prevail and act effectively. 33 And those having insight among the people will impart understanding to the many. And they will be made to stumble by sword and by flame, by captivity and by plundering, for some days. 36 “The king will do as he pleases, and he will exalt himself and magnify himself above every god; and against the God of gods he will speak astonishing things. And he will prove successful until the denunciation comes to a finish; because what is determined must take place. 37 He will show no regard for the God of his fathers; nor will he show regard for the desire of women or for any other god, but he will magnify himself over everyone.]
[ 3 Let no one lead you astray in any way, because it will not come unless the apostasy comes first and the man of lawlessness gets revealed, the son of destruction. 4 He stands in opposition and exalts himself above every so-called god or object of worship, so that he sits down in the temple of God, publicly showing himself to be a god. 9 But the lawless one’s presence is by the operation of Satan with every powerful work and lying signs and wonders 10 and every unrighteous deception for those who are perishing, as a retribution because they did not accept the love of the truth in order that they might be saved. 11 That is why God lets a deceptive influence mislead them so that they may come to believe the lie, 12 in order that they all may be judged because they did not believe the truth but took pleasure in unrighteousness.]
[12 “The ten horns that you saw mean ten kings who have not yet received a kingdom, but they do receive authority as kings for one hour with the wild beast13 These have one thought, so they give their power and authority to the wild beast.][5 It was given a mouth speaking great things and blasphemies, and it was given authority to act for 42 months. 7 It was permitted to wage war with the holy ones and conquer them, and it was given authority over every tribe and people and tongue and nation. 10 If anyone is meant for captivity, he will go into captivity. If anyone will kill with the sword, he must be killed with the sword. This is where it calls for endurance and faith on the part of the holy ones.][11 Then I saw another wild beast ascending out of the earth, and it had two horns like a lamb, but it began speaking like a dragon. 12 It exercises all the authority of the first wild beast in its sight. And it makes the earth and its inhabitants worship the first wild beast, whose mortal wound was healed. 13 And it performs great signs, even making fire come down out of heaven to the earth in the sight of mankind. 14 It misleads those who dwell on the earth, because of the signs that it was permitted to perform in the sight of the wild beast, while it tells those who dwell on the earth to make an image to the wild beast that had the sword-stroke and yet revived. 16 It puts under compulsion all people—the small and the great, the rich and the poor, the free and the slaves—that these should be marked on their right hand or on their forehead, 17 and that nobody can buy or sell except a person having the mark, the name of the wild beast or the number of its name.][6 And I saw another angel flying in midheaven, and he had everlasting good news to declare to those who dwell on the earth, to every nation and tribe and tongue and people. 7 He was saying in a loud voice: “Fear God and give him glory, because the hour of judgment by him has arrived, so worship the One who made the heaven and the earth and the sea and the springs of water.” 9 Another angel, a third, followed them, saying in a loud voice: “If anyone worships the wild beast and its image and receives a mark on his forehead or on his hand, 10 he will also drink of the wine of the anger of God that is poured out undiluted into the cup of His wrath, and he will be tormented with fire and sulfur in the sight of the holy angels and in the sight of the Lamb.][20 And the wild beast was caught, and along with it the false prophet that performed in front of it the signs with which he misled those who received the mark of the wild beast and those who worship its image. While still alive, they both were hurled into the fiery lake that burns with sulfur. 21 But the rest were killed off with the long sword that proceeded out of the mouth of the one seated on the horse. And all the birds were filled with their flesh.]
[24 And they will fall by the edge of the sword and be led captive into all the nations; and Jerusalem will be trampled on by the nations until the appointed times of the nations are fulfilled.]
[2 But as for the courtyard that is outside the temple sanctuary, leave it out and do not measure it, because it has been given to the nations, and they will trample the holy city underfoot for 42 months.]
[17 For it is the appointed time for the judgment to start with the house of God. Now if it starts first with us, what will the outcome be for those who are not obedient to the good news of God?]
[ 7 But you who suffer tribulation will be given relief along with us at the revelation of the Lord Jesus from heaven with his powerful angels 8 in a flaming fire, as he brings vengeance on those who do not know God and those who do not obey the good news about our Lord Jesus. 9 These very ones will undergo the judicial punishment of everlasting destruction from before the Lord and from the glory of his strength, 10 at the time when he comes to be glorified in connection with his holy ones and to be regarded in that day with wonder among all those who exercised faith, because the witness we gave met with faith among you.]