Alcuin
Catena Aurea · Johannesevangelium 6
The day following, when the people which stood on the other side of the sea saw that there was none other boat there, save that one whereinto his disciples were entered, and that Jesus went not with his disciples into the boat, but that his disciples were gone away alone; (Howbeit there came other boats from Tiberias nigh unto the place where they did eat bread, after that the Lord had given thanks:) When the people therefore saw that Jesus was not there, neither his disciples, they also took shipping, and came to Capernaum, seeking for Jesus. And when they had found him on the other side of the sea, they said unto him, Rabbi, when camest thou hither? Jesus answered them and said, Verily, verily, I say unto you, Ye seek me, not because ye saw the miracles, but because ye did eat of the loaves, and were filled. Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.
To take the passage mystically: on the day following, i. e. after the ascension of Christ, the multitude standing in good works, not lying in worldly pleasures, expects Jesus to come to them. The one ship is the one Church: the other ships which come besides, are the conventicles of heretics, who seek their own, not the things of Jesus Christ. Wherefore He well says, Ye seek Me, because ye did eat of the loaves. (Phil. 2:21)