p. 318 Homily XVII.
Chapter I.—Simon Comes to Peter.
The next day, therefore, as Peter was to hold a discussion with Simon, he rose earlier than usual and prayed. On ceasing to pray, Zacchæus came in, and said: “Simon is seated without, discoursing with about thirty of his own special followers.” And Peter said: “Let him talk until the multitude assemble, and then let us begin the discussion in the following way. We shall hear all that has been said by him, and having fitted our reply to this, we shall go out and discourse.” And assuredly so it happened. Zacchæus, therefore, went out, and not long after entered again, and communicated to Peter the discourse delivered by Simon against him. 1314
The text has: “against Peter.”