Mark 13:18

16 And let no one in the field return for his cloak.

17 How miserable those days will be for pregnant and nursing mothers!

Pray that this will not occur in the winter.

19 For those will be days of tribulation unmatched from the beginning of God’s creation until now, and never to be seen again.

20 If the Lord had not cut short those days, nobody would be saved. But for the sake of the elect, whom He has chosen, He has cut them short.

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Pray that this will not occur in the winter.
KJV
And pray ye that your flight be not in the winter.
WEB
Pray that your flight won’t be in the winter.
ASV
And pray ye that it be not in the winter.
DARBY
And pray that it may not be in winter time;
BLB
And pray that it might not be in winter,
ÅB
Men be at det ikke må skje om vinteren!
OTB
Be om at det ikke skjer om vinteren,
B1930
Men bed at det ikke må skje om vinteren!

Study notes (Tyndale)

Original text and word study