Daniel 9:27 (NIV) …And at the temple he will set up an abomination that causes desolation, until the end that is decreed is poured out on him.

Matthew 24:15-21 (NIV) So when you see standing in the holy place 'the abomination that causes desolation,' spoken of through the prophet Daniel - let the reader understand - then let those who are in Judea flee to the mountains.  Let no one on the housetop go down to take anything out of the house.  Let no one in the field go back to get their cloak.  How dreadful it will be in those days for pregnant women and nursing mothers!  Pray that your flight will not take place in winter or on the Sabbath.  For then there will be great distress, unequaled from the beginning of the world until now - and never to be equaled again.

Mark 13:14-19 (NIV) When you see 'the abomination that causes desolation' standing where it does not belong - let the reader understand - then let those who are in Judea flee to the mountains.  Let no one on the housetop go down or enter the house to take anything out.  Let no one in the field go back to get their cloak.  How dreadful it will be in those days for pregnant women and nursing mothers!  Pray that this will not take place in winter, because those will be days of distress unequal from the beginning, when God created the world, until now - and never to be equaled again.

Luke 21:20-24 (NIV) When you see Jerusalem being surrounded by armies, you will know that its desolation is near.  Then let those who are in Judea flee to the mountains, let those in the city get out, and let those in the country not enter the city.  For this is the time of punishment in fulfillment of all that has been written.  How dreadful it will be in those days for pregnant women and nursing mothers!  There will be great distress in the land and wrath against this people.  They will fall by the sword and will be taken as prisoners to all the nations.  They will be trampled on by the Gentiles until the times of the Gentiles are fulfilled.

2 Thessalonians 2:3-4 (NIV) Don't let anyone deceive you in any way, for that day will not come until the rebellion occurs and the man of lawlessness is revealed, the man doomed to destruction.  He will oppose and will exalt himself over everything that is called God or is worshiped, so that he sets himself up in God's temple, proclaiming himself to be God.

‍

The Antichrist, also known as “the abomination,” will go to Jerusalem, walk into the newly constructed third temple (located on the Temple Mount), walk into the Holy of Holies (a place reserved for God’s presence) and boldly declare himself “God.” “He will oppose and will exalt himself over everything that is called God or is worshiped, so that he sets himself up in God’s temple, proclaiming himself to be God.” When this single incident occurs “you will know that its desolation is near.” In other words, the Antichrist will fire the initial salvo to initiate World War III!