Matthew 24:26

24 For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect.

25 Behold, I have told you before.

Wherefore if they shall say unto you, Behold, he is in the desert; go not forth: behold, he is in the secret chambers; believe it not.

27 For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be.

28 For wheresoever the carcase is, there will the eagles be gathered together.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
So if they tell you, ‘There He is in the wilderness,’ do not go out; or, ‘Here He is in the inner rooms,’ do not believe it.
KJV
Wherefore if they shall say unto you, Behold, he is in the desert; go not forth: behold, he is in the secret chambers; believe it not.
WEB
“If therefore they tell you, ‘Behold, he is in the wilderness,’ don’t go out; or ‘Behold, he is in the inner rooms,’ don’t believe it.
ASV
If therefore they shall say unto you, Behold, he is in the wilderness; go not forth: Behold, he is in the inner chambers; believe [it] not.
DARBY
If therefore they say to you, Behold, he is in the desert, go not forth; behold, [he is] in the inner chambers, do not believe [it].
BLB
Therefore if they may say to you⁺, ‘Behold, He is in the wilderness,’ do not go out; [or] ‘Behold, in the inner rooms,’ do not believe [it].
ÅB
Om de sier til dere: ‘Se, han er ute i ødemarken’, ikke gå dit! Om de sier ‘se, han er inne i kammerne’, ikke tro det!
OTB
Hvis de da sier til dere: 'Han er i ørkenen,' så gå ikke ut dit; eller: 'Han er i de innerste rom,' så tro det ikke.
B1930
Om de da sier til eder: Se, han er ute i ørkenen, da gå ikke der ut; se, han er inne i kammerne, da tro det ikke!

Study notes (Tyndale)

Original text and word study