mindlight,the two witnesses are in Revelation 11.
The person is no longer the Antichrist (phony King of Israel), but the beast in that chapter, when he has them killed.
I will explain in words you can understand, what is going on.
The 7 years begin when little horn person, following the Gog/Magog event, is perceived by the Jews to the long awaited messiah. He will be anointed the King of Israel. That is what actually makes him the "Antichrist".
He will either read the law of Moses himself, or oversee it being read, from the temple mount. That begins the confirms the covenant for 7 years, a requirement that Moses made back in Deuteronomy 31:9-13 of all future leaders of Israel.
It is not a peace treaty that is so often said.
At the time, the two witnesses will be at the temple mount - likely in the current western wall setting of today, warning the people not to trust him and that Jesus is the real messiah.
That will go on for about three years, all in the first half, no doubt an irritant to the Antichrist, but he will not have turned to violent mode because he is not the beast during that time.
He will be on the temple mount grounds, inner courtyard, as the animal sacrifices will be taking place there. The brazen altar will be outside of the temple sanctuary building - that the inside of has restricted entry except by the priests.
At around the three years mark (because we don't have enough infomation to know exactly to the day when) the Antichrist will stop the daily sacrifice, go into the temple sanctuary, showing everyone that he is God, sitting in the Holy of Holies chamber, claiming to have achieved God-hood.
No doubt he will have a TV broadcast crew with him to televise the whole thing as no one can actually go into the sanctuary building under prior conditions, to see it happen.
The act will reveal that he is the man of sin, and not the thought to be messiah after all. The Jews will mortified, and will refuse him to continue as their King of Israel. Ending his stint as the Antichrist.
That's what you have to get clear. The person is the Antichrist only for the time he is the King of Israel, instead of and against the rightful King of Israel Jesus.
So as the revealed man of sin, he starts trying to get rid of the two witnesses. His enforcement police cannot harm them, because they send the fire out of their mouths.
Shortly after his audacious act of claiming to be God, God has strangers come against the revealed man of sin and they kill him - likely an assassination. Ezekiel 28:1-10 documents the whole thing.
There is a big funeral for the person, televised, while his soul is in hell. God in disdain for the person brings him back to life, before his body is ever put in a tomb. Isaiah 14:15-20.
With the whole world watching, he sits up in his casket, back to life.
It is then that he begins his time as the beast, having the beast nature.
And the false prophet has an statue image made of him, and placed on the temple mount grounds - where everyone can see it and be forced to come and bow to it - and not inside the sanctuary building.
The abomination of desolation.
That will be the signal for the Jews to flee to the mountains. As the two witnesses will have been telling them during their 1260 days.
The beast makes war on the two witnesses, with them causing the plagues on the world, showing that he is not God he claims to be.
The Jews are fleeing to the mountains the whole time.
For 75 days, they flee into the mountains, aided by the two witnesses. (between day 1185 and day 1260).
The beast finally overcomes the two witnesses and has them killed on day 1260. Reinforcing to the world his claim of having achieved God-hood. They will say who is like unto the beast, who can make war against him - from Revelation 13.
On day 1263.5, the two witnesses come back to life and ascend to heaven. Leaving the beast to rule the world with 42 months left in the 7 years, unhampered by their presence.
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