Where the body is, the vultures will gather
Matthew
23 If anyone says to you then, ‘Look, here is the Messiah!’ or, ‘There he is!’ do not believe it.
24 False messiahs and false prophets will arise, and they will perform signs and wonders so great as to deceive, if that were possible, even the elect.
25 Behold, I have told it to you beforehand.
26 So if they say to you, ‘He is in the desert,’ do not go out there; if they say, ‘He is in the inner rooms,’ do not believe it.*
27 For just as lightning comes from the east and is seen as far as the west, so will the coming of the Son of Man be.
28 Wherever the corpse is, there the vultures will gather.
Luke
"They said to him in reply, 'Where, Lord?' He said to them, 'Where the body is, there also the vultures will gather.'" (Lk 17:37).
Exegesis
"For the plurality of recent commentaries, when the Son of Man appears the disciples will be as sure of where he is as vultures are sure of the place of the cadaver, i.e. they will no more need a special sign than do the vultures."[1]