The apostle John was told to get a reed like a rod to measure the temple of God.
What is this temple of God that we are discussing?
Revelation 8 talks about the temple of God and an altar up in heaven, we may think that it is referring to the temple up in heaven. But it is actually referring to the temple here on earth. It is referring to Jerusalem, a Jewish temple where people can come to worship.
There is also a court outside of the temple which John is not asked to measure, this is because the court is given unto the gentiles, it is not meant for the Jews. The gentiles will take over the Jerusalem court and city for 3.5 years.
The following versions talk about the abomination of desolation; a desecration that will take place.
Daniel 9:27 And he shall confirm the covenant with many for one week: and in the midst of the week he shall cause the sacrifice and the oblation to cease, and for the overspreading of abominations he shall make it desolate, even until the consummation, and that determined shall be poured upon the desolate.
Matthew 24:15 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)
In the middle of the seven years of tribulation, the antichrist and the gentiles shall come in and take over the Temple Mount and stop the Jewish worship system.
The bible also clearly states the representative of the antichrist as a Jewish elite. People tend to assume that the Jewish elite naturally represents the nation of Israel, but that’s not the case because during the tribulation, this Jewish elite will betray the nation of Israel.
Revelation 11:3 And I will give power unto my two witnesses, and they shall prophesy a thousand two hundred and threescore days, clothed in sackcloth.
God will send two witnesses to take care of this matter during the latter of the three and the half years of tribulation when the abomination of desolation takes place. God will assign these two witnesses to particularly assist the Jews as they would be persecuted by the Antichrist.
There are some people who would also assume that these witnesses are Elijah and Enoch because they never really died and got raptured instead. So it naturally made them great witnesses to be sent by God. However our understanding is that thousands or millions of Christians will also experience pre-tribulation rapture, so at then Enoch and Elijah cannot be the two-person who didn’t experience death and only rapture.