Luke 23:5

‘But they were the more urgent, saying, “He stirs up the people, teaching throughout all Judaea, and beginning from Galilee even to this place.”

Fearful that Jesus might be released without charge, ‘they' (the chief priests) tried to put pressure on Pilate. Their protests ‘grew stronger'. Did he not realise that this man was stirring up the whole country? And indeed had also previously done it in Galilee, which was as usual the source of all the trouble. With their contempt for Galilee they thought that this in itself should be enough to prove their case. Galilee was a hotbed of troublemakers and heretics.