Matthew 24:25 in the King James Version
Behold, I have told you before.
Context
24 For false christs and false prophets will arise, and they will show great signs and wonders, so as to lead astray, if possible, even the chosen ones.
25 “Behold, I have told you beforehand.
26 “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.