68 Grk “And they will say.” The plural in Greek is indefinite, referring to people in general. Here καί (kai) has been translated as “then” to indicate the implied sequence of events within the narrative.
69 The words “he is” here and in the following clause are understood and have been supplied from the context.
70 Do not go out or chase after them. There will be no need to search for the Son of Man at his coming, though many will falsely claim its arrival.

In other versions

And they will say to you, ‘Look, there!’ or ‘Look, here!’ Do not go out or follow them.

People will tell you, ‘There he is!’ or ‘Here he is!’ Do not go running off after them.

They will say to you, ‘See there!’ or ‘See here!’ Don’t follow or run after them.

People will tell you, ‘Look, there is the Son of Man,’ or ‘Here he is,’ but don’t go out and follow them.

And they will say to you, ‘Behold, there!’ ‘Behold, here!’ Do not go out or run after them!

And they shall say to you, See here; or, see there: go not after them, nor follow them.

Public Domain