John 18

John 18:15

Simon Peter was following Jesus, and so was another disciple.  Now that disciple was known to the high priest, and entered with Jesus into the court of the high priest,

Apparently, John was someone of note somehow.  For one reason or another, he was known to the high priest, and not in a completely hostile way.  He was accepted enough that he was allowed to enter the court without incident, while Peter was not.

How did the son of a fisherman, who probably only had passing familiarity with Jerusalem, become known well enough that he was permitted entry into the high priest's house?  John was from Galilee, which probably isn't somewhere the high priest got often, given his responsibilities at the Temple.  So what did John do that was notable enough for the high priest's household to accept him, but not radical enough to be shunned?