NET
23 Then if anyone says to you, ‘Look, here is the Christ!’ or ‘There he is!’ do not believe him.
Darby
23 Then if any one say to you, Behold, here is the Christ, or here, believe [it] not.
KJV
23 “Then if any man shall say unto you, Lo, here” [is] “Christ, or there; believe” [it] “not.”