Matthew 24:15-16

"When you have seen (to use the language of the Prophet Daniel)

Matthew 24:32-34

"Now learn from the fig-tree the lesson it teaches. As soon as its branches have now become soft and it is bursting into leaf, you all know that summer is near.

Mark 13:14-16

"As soon, however, as you see the Abomination of Desolation standing where he ought not" --let the reader observe these words--"then let those in Judaea escape to the hills;

Luke 21:20-21

"But when you see Jerusalem with armies encamping round her on every side, then be certain that her overthrow is close at hand.

Luke 21:29-33

And He spoke a parable to them. "See," He said, "the fig-tree and all the trees.

Treasury of Scripture Knowledge

Summary

And this shall be a sign unto you, saith the LORD, that I will punish you in this place, that ye may know that my words shall surely stand against you for evil:

Bible References

A sign

Matthew 24:15
"When you have seen (to use the language of the Prophet Daniel)
Mark 13:14
"As soon, however, as you see the Abomination of Desolation standing where he ought not" --let the reader observe these words--"then let those in Judaea escape to the hills;
Luke 21:20
"But when you see Jerusalem with armies encamping round her on every side, then be certain that her overthrow is close at hand.