Against the consensus that John 2.19 alludes to the destruction of the temple and is dependent on Synoptic traditions, it is argued here that: (a) there is some interdependence between the Johannine and Synoptic sayings on temple destruction, but not so as to posit Johannine use of Synoptic material; (b) Jesus' saying in John 2.19 does not refer to the destruction of the Jerusalem temple, but to his death and resurrection (proof of his temple-cleansing authority), formulated in distinctively and exclusively Johannine terms; (c) Mark takes Jesus to have predicted the destruction of the temple, but the notion that he also predicted its rebuilding (Mark 15.29) can be explained only as a distorted version of John 2.19, known to Mark via a source hostile to Jesus.