Mark 13:7

And when you hear of wars and rumours of war, do not be alarmed; these have to come, but it is not the end yet.

Matthew 18:7

Woe to the world for hindrances! Hindrances have to come, but ??woe to the man by whom the hindrance does come!

Matthew 24:6-7

You will hear of wars and rumours of wars; see and do not be alarmed. These have to come, but it is not the end yet.

Luke 21:9-11

And when you hear of wars and disturbances, do not be scared; these have to come first, but the end is not at once."

John 14:1

Let not your hearts be disquieted; you believe ??believe in God and also in me.

John 14:27

Peace I leave to you, my peace I give to you; I give it not as the world gives its 'Peace!' Let not your hearts be disquieted or timid.

Acts 17:3

explaining and quoting passages to prove that the messiah had to suffer and rise from the dead, and that "the Jesus I proclaim to you is the messiah."

Treasury of Scripture Knowledge

Summary

And when ye shall hear of wars and rumours of wars, be ye not troubled: for such things must needs be; but the end shall not be yet.

Bible References

When

Matthew 24:6
You will hear of wars and rumours of wars; see and do not be alarmed. These have to come, but it is not the end yet.
Luke 21:9
And when you hear of wars and disturbances, do not be scared; these have to come first, but the end is not at once."
John 14:1
Let not your hearts be disquieted; you believe ??believe in God and also in me.

Must

Matthew 18:7
Woe to the world for hindrances! Hindrances have to come, but ??woe to the man by whom the hindrance does come!
Acts 17:3
explaining and quoting passages to prove that the messiah had to suffer and rise from the dead, and that "the Jesus I proclaim to you is the messiah."