John 18:2

2KnewᾔδειnowδὲalsoκαὶJudasἸούδαςwhoὁwas delivering upπαραδιδοὺςHimαὐτὸνtheτὸνplaceτόπον,becauseὅτιoftenπολλάκιςgathered togetherσυνήχθηJesusἸησοῦςthereἐκεῖwithμετὰtheτῶνdisciplesμαθητῶνof Himαὐτοῦ.

Now Judas, who is delivering Him up, also knew the place, because Jesus often gathered together there with His disciples.