Matthew 24:25-27
21st Century King James Version
25 Behold, I have told you before.
26 Therefore, if they shall say unto you, ‘Behold, He is in the desert!’ go not forth; or ‘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.
https://www.biblegateway.com/passage/?search=Matthew%2024:25-27&version=KJ21
We know this message was directed specifically to Israel because of Jesus using the ‘son of man’ idomatic expression.