Luke 21:12: “But before all these,” [The prophecies pertaining to the last day, verses 8-11] “they shall lay their hands on you, and persecute you, delivering you up to the synagogues, and into prisons, being brought before kings and rulers for my name's sake.” One example of the fulfillment of the aforementioned prophecy is Acts 5:12-26.
Luke 21:13: “And it shall turn to you for a testimony.”
Luke 21:14: “Settle it therefore in your hearts, not to meditate before what ye shall answer:”
Luke 21:15: “For I” [Christ] “will give you a mouth and wisdom," [See John 14:26 and Acts 2:1-4] "which all your adversaries shall not be able to gainsay nor resist.” Continuation of the above example Acts 5:27-42.
Luke 21:16: “And ye shall be betrayed both by parents, and brethren, and kinsfolks, and friends; and some of you" [Peter, James, John and Andrew] "shall they cause to be put to death." See Acts 12:1-17.
Luke 21:17: “And ye shall be hated of all men for my name's sake.” See Matthew 5:10-12 and 1 Peter 4:14.
Luke 21:18: “But there shall not an hair of your head perish.”
Luke 21:19: “In your patience possess ye your souls.”
Luke 21:20: “And when ye shall see Jerusalem" [A city of Judaea, see below map] "compassed with armies, then know that the desolation thereof is nigh.” In 70 A.D. the Romans destroyed the city of Jerusalem, and the temple.
Luke 21:21: “Then" [At the time when Jerusalem is compassed with armies] "let them which are in Judaea flee to the mountains;" [The other nations/other areas] "and let them which are in the midst" [Middle] "of it" [Judaea] "depart out; and let not them that are in the countries" [Nations/regions, outside of Judaea] "enter thereinto.” Judaea.
Luke 21:22: “For these be the days of vengeance, that all things which are written may be fulfilled.” David wrote concerning this time period; those Israelites, who rejected Christ would be punished, see Psalm 69:22-28. Additionally, the curses found throughout the Old Testament, example Deuteronomy 28:15-68.
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," [Jerusalem] "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," [The nations] "until the times of the Gentiles be fulfilled.” The Day of the Lord, see Revelation 19:11-15.