Luke 21:20 And when ye shall see Jerusalem compassed with armies, then know that the desolation thereof is nigh.
The Jews at the time of Jesus expected Messiah to come and deliver them when Jerusalem would be surrounded by their enemies. Many in the first century were rejoicing when the Roman soldiers circled the city in AD 70. This was not to be the time of deliverance and Jesus warned his disciples to flee. They had rejected their Messiah.The second coming of Christ would again see Jerusalem under siege, at these end times, Messiah Jesus, Christ Jesus will return again.
Luke 21:21 Then let them which are in Judaea flee to the mountains; and let them which are in the midst of it depart out; and let not them that are in the countries enter thereinto.
Christians in Jerusalem knew what Jesus had said and they obeyed Him, fleeing across the Jordan River to a city named Pella. No Christians perished in the fall of Jerusalem. (Guzik)
Luke 21:22 For these be the days of vengeance, that all things which are written may be fulfilled.
Over one million Jews would be killed by Roman soldiers and another one hundred thousand were taken captive.
Luke 21:23 But woe unto them that are with child, and to them that give suck, in those days! for there shall be great distress in the land, and wrath upon this people. Luke 21:24 And they shall fall by the edge of the sword, and shall be led away captive into all nations: and Jerusalem shall be trodden down of the Gentiles, until the times of the Gentiles be fulfilled.
Jerusalem has been trodden by Gentiles until 1968. Still the temple mount is under Arab control. When the time of the Gentles is over, Israel will be near the coming of Jesus.
Rom 11:25 For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.
Rom 11:26 And so all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob:
Rom 11:27 For this is my covenant unto them, when I shall take away their sins.
When the church, the believers in Jesus Christ are gathered unto the Lord Jesus, then shall Israel know their Messiah. These will be perilous times. Many who believe will be killed, but they will live forever in Gods heaven. Isn't that our most important hope? To be with Jesus, apart from sin in a place of perfect peace.? His love keeps us.
1 John 4:18 There is no fear in love; but perfect love casteth out fear: because fear hath torment. He that feareth is not made perfect in love.
His love for us is perfect. Come to Jesus, for he is Lord and master.