Pseudo-Chrysostom
Catena Aurea · Matthäusevangelium 3
I indeed baptize you with water unto repentance: but He that cometh after me is mightier than I, Whose shoes I am not worthy to bear: He shall baptize you with the Holy Ghost, and with fire: Whose fan is in His hand, and He will throughly purge His floor, and gather His wheat into the garner; but He will burn up the chaff with unquenchable fire.
Or, by the feet of Christ we may understand Christians, especially the Apostles, and other preachers, among whom was John Baptist; and the shoes are the infirmities with which he loadsthe preachers. These shoes all Christ’s preachers wear; and John also wore them; but declares himself unworthy, that he might shew the grace of Christ, and be greater than his deserts.