Resorted thither (sunhcqh ekei). First aorist passive indicative of sunagw, old verb to gather together. A bit awkward here till you add "with his disciples." Judas knew the place, and the habit of Jesus to come here at night for prayer ( Luke 22:39 ). Hence his offer to catch Jesus while the feast was going on, catch him at night and alone in his usual place of prayer (the very spirit of the devil).