I saw heaven standing open(AG) and there before me was a white horse, whose rider(AH) is called Faithful and True.(AI) With justice he judges and wages war.(AJ) 12 His eyes are like blazing fire,(AK) and on his head are many crowns.(AL) He has a name written on him(AM) that no one knows but he himself.(AN) 13 He is dressed in a robe dipped in blood,(AO) and his name is the Word of God.(AP) 14 The armies of heaven were following him, riding on white horses and dressed in fine linen,(AQ) white(AR) and clean. 15 Coming out of his mouth is a sharp sword(AS) with which to strike down(AT) the nations. “He will rule them with an iron scepter.”a He treads the winepress(AV) of the fury of the wrath of God Almighty. 16
Christians think this is about Isa AS, however it cannot be since Isa AS never rode a horse nor did own a sword. It is imam Mahdi AJ. He AS will have Thulfiqar and he would be dressed in a shirt with blood as described in Hadith:
Ya’qoob bin Shu’ayb had said: “Abu Abdullah as-Sadiq (as) said to me: Would I show you the shirt that al-Qa’im will put on when he rises?” I said: “Yes, please!” He opened a case and took a shirt out of it. He spread the shirt. There was some blood on its left sleeve. He said: “This is the shirt of the Prophet (S). This blood dropped on it from the Prophet’s mouth on the day when his front teeth had been struck.” I kissed the spots of blood and put them on my face. Then Abu Abdullah (as) folded the shirt and put it back in its place.”
Then I saw the beast(BF) and the kings of the earth(BG) and their armies gathered together to wage war against the rider on the horse(BH) and his army. 20 But the beast was captured, and with it the false prophet(BI) who had performed the signs(BJ) on its behalf.(BK) With these signs he had deluded(BL) those who had received the mark of the beast(BM) and worshiped its image.(BN) The two of them were thrown alive into the fiery lake(BO) of burning sulfur.(BP) 21 The rest were killed with the sword(BQ) coming out of the mouth of the rider on the horse,(BR) and all the birds(BS) gorged themselves on their flesh.
The beast is the dajjal LA and the false prophet is the most likely the sufyani LA. Both will be killed by imam Mahdi AJ
Then will appear the sign of the Son of Man in heaven. And then all the peoples of the earth[c] will mourn(AE) when they see the Son of Man coming on the clouds of heaven,(AF) with power and great glory.[d] 31 And he will send his angels(AG) with a loud trumpet call,(AH) and they will gather his elect from the four winds, from one end of the heavens to the other.
On the authority of Abu Jaafar, peace be upon him, he said: Dhul-Qarnayn had to choose between soft clouds and hard clouds. He chose the soft and he made the hard for your companion (AJ). He said: I said: What is hard? He said: If there is a cloud in which there is thunder and thunderbolt or lightning, then your companion (1) rides it, but he will ride the clouds and ascend in the causes of the seven heavens and the seven earths
36 “But about that day or hour no one knows, not even the angels in heaven, nor the Son,[f] but only the Father lord.(AN) 37 As it was in the days of Noah,(AO) so it will be at the coming of the Son of Man. 38 For in the days before the flood, people were eating and drinking, marrying and giving in marriage,(AP) up to the day Noah entered the ark; 39 and they knew nothing about what would happen until the flood came and took them all away. That is how it will be at the coming of the Son of Man
It is narrated from Imam Zainul Abideen (as) that he said: “In the Qaim is present the characteristics of Adam and Nuh (as), and that is a long life…”15
The Qaim is also observing patience since the beginning of his Imamate till now, and I don’t know till when he would be patient. Those who opposed Nuh (as) were destroyed. All those who oppose Qaim would also be destroyed. – as mentioned in tradition - .16
42 “Therefore keep watch, because you do not know on what day your Lord will come.(AT) 43 But understand this: If the owner of the house had known at what time of night the thief was coming,(AU) he would have kept watch and would not have let his house be broken into. 44 So you also must be ready,(AV) because the Son of Man will come at an hour when you do not expect him.
on the authority of Ali (a.s.) who narrated that God’s Prophet (S) was asked, ’O Prophet of God! When shall the Riser who is from your progeny rise?’ The Prophet (S) replied, ‘The similitude of that is like the similitude of the Hour (of Resurrection), ‘None but He can reveal as to when it will occur. Heavy were its burden through the heavens and the earth. Only, all of a sudden will it come to you.’”
6 Then I saw another angel flying in midair, and he had the eternal gospel to proclaim to those who live on the earth—to every nation, tribe, language and people. 7 He said in a loud voice, “Fear God and give him glory, because the hour of his judgment has come. Worship him who made the heavens, the earth, the sea and the springs of water.”
and these verses parallel these Hadiths about imam Mahdi AJ:
He takes the Torah and the rest of the divine Books of Allah from the cave of Antakya (Antioch). He will judge among the people of the Torah with the Torah, among the people of the Bible with the Bible, among the people of Psalms (of Prophet David) with the Psalms and among the people of the Qur’an with the Qur’an. The wealth of the world is gathered to him from above the ground and from under the ground.
A caller will call out from the sky in the morning: Know that the truth is with Imam Ali (a.s) and his Shia.
Going to the gospel of mark 8:
38 If anyone is ashamed of me and my words in this adulterous and sinful generation, the Son of Man(AJ) will be ashamed of them(AK) when he comes(AL) in his Father’s glory with the holy angels.”
Note that the majority part of mark 8 is corrupt since it discusses crucification. However this last part stands out. The son of man isn’t Isa AS, Isa AS had no father. It is imam Mahdi AJ, his father is ameer al mu’mineen AS.
Here’s a Parallel Hadith:
when our Al-Qa’im will rise with Divine Authority, he will wear the kind of garment that Ali (a.s.) did and he will live just as Ali (a.s.) lived.”