7 Do you see not how in king's palaces it is not those who have offended, but those who have been honorably distinguished, that are called to share special favor, and are numbered among the king's friends. A messenger has come to us from heaven, sent by God Himself, to speak with us on certain necessary matters, and you leave hearing His will, and the message He sends to you, and sit listening to stage-players. What thunderings, what bolts from heaven, does not this conduct deserve!
For as it is not meet to partake of the table of devils, so neither is it of the listening to devils; nor to be present with filthy raiment at that glorious Table, loaded with so many good things, which God Himself has provided. Such is its power, that it can raise us at once to heaven, if only we approach it with a sober mind. For it is not possible that he who is continually under the influence of the words of God, can remain in this present low condition, but he needs must presently take wing, and fly away to the land which is above, and light on the infinite treasures of good things; which may it be that we all attain to, through the grace and lovingkindness of our Lord Jesus Christ, through whom and with whom be glory to the Father and the All-holy Spirit, now and ever, and world without end.
Amen.
Source: Homilies on the Gospel of John (New Advent)