Hi JC.
In the letter to the angel of the church in Philadelphia, the Lord mentions in verse 9 those who say they are Jews, and are not, indicating that the letter is to the believing Jews of the church in Philadelphia. Verse ten makes the promise quoted above.
This gets a bit detailed, but here goes:
Revelation 12: Satan and his horde are cast out of heaven. When he sees this, he persecutes "the woman which brought forth the man child." [Christ] The woman here is the nation of Israel.
vs 14: The woman is given the wings of a great eagle, that she might fly into the wilderness, into her place, where she is nourished for a time, times, and half a time, from the face of the serpent.
vs 17: And the dragon was wroth with the woman, and went to make war with the remnant of her seed, [the gentile christians] which keep the commandments of God, and have the testimony of Jesus Christ.
Revelation 13: Here we see the appearing of the antichrist [the beast who rises out of the sea].
vs 5: "and power was given unto him to continue forty and two months".
{Note here chapter 11, vs 3: And I will give power unto my two witnesses, and they shall prophesy a thousand two hundred and threescore days, clothed in sackcloth.}
Revelation 13, vs 7: And it was given unto him to make war with the saints, and to OVERCOME THEM: and power was given him over ALL kindreds, and tongues, and nations.
Matthew 24, vs 15-21: 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:) Then let them which be in Judaea flee into the mountains: Let him which is on the housetop not come down to take any thing out of his house: Neither let him which is in the field return back to take his clothes................vs 19, 20,...............For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
Romans 9, vs 6: ".....For they are not all Israel, which are of Israel:"
The course of events here is this: The antichrist walks into the temple when Satan sees that he is cast out of heaven, and creates the abomination of desolation which he will stand in the holy place, and commences with the killing of jews. The CHRISTIAN jews will be given a special dispensation of protection in the wilderness where they will be nourished and protected for a time, times and half a time, [rev 3:10] until the words of God are fulfilled. But they will have to flee for their lives in great haste, hence the warning about winter, and pregnancy, and women with suckling infants. When Satan sees that the believing jews have escaped him he will turn upon the gentile christians. The protected jews will take part in the catching away, but will not have to face the temptation of "worship the beast or die." [The hour of temptation that will come upon all the earth] Unbelieving jews will not escape, because not all Israel is Israel.
A time=one year. Times=two years, and half a time=half a year.
A time, times, and half a time are equal to 1260 days, which are in turn equal to forty and two months, these all being based upon the Jewish calendar of twelve equal months of thirty days each. The two witnesses will witness for God, being invincible during the time of their testimony, amidst this great slaughter of the saints of God.
The time of the antichrist, the time of protection of the believing jews, and the time of the two witnesses are concurrent events. I believe, but can't at this time offer proof, that the two witnesses will be taken up to God at the time of the rapture.
On a side note, understand that Jesus Christ is not yet in Jerusalem, in his resurrection body, ruling over the earth in physically present form. Therefore, neither has the rapture yet occurred, because we the believers are not yet in our own God given resurrection bodies ruling over the earth as servants of Christ. Nor yet have we attended the marriage supper of the lamb. Never in history has any one man had absolute rule over All nations, peoples, and tongues of the entire earth as the antichrist will have for his allotted "forty and two months." Be assured that these things are yet to come.
Understand that If the rapture had already occured, every person on earth would know that Jesus was in Jerusalem in person, handing out immediate justice via his holy angels and his body of resurrected servants.
Grace and peace to all who believe. Let us love one another, for the time is at hand.