Sang a hymn (umnhsante). The Hallel, part of Ps 115-118. But apparently they did not go out at once to the Garden of Gethsemane. Jesus tarried with them in the Upper Room for the wonderful discourse and prayer in John 14-17 . They may have gone out to the street after John 14:31 . It was no longer considered obligatory to remain in the house after the passover meal till morning as at the start ( Exodus 12:22 ). Jesus went out to Gethsemane, the garden of the agony, outside of Jerusalem, toward the Mount of Olives.