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.
The floor, is the Church, the barn, is the kingdom of heaven, the field, is the world. The Lord sends forth His Apostles and other teachers, as reapers to reap all nations of the earth, and gather them into the floor of the Church. Here we must be threshed and winnowed, for all men are delighted in carnal things as grain delights in the husk. But whoever is faithful and has the marrow of a good heart, as soon as he has a light tribulation, neglecting carnal things runs to the Lord; but if his faith be feeble, hardly with heavy sorrow; and he who is altogether void of faith, however he may be troubled, passes not over to God. The wheat when first thrashed lies in one heap with chaff and straw, and is after winnowed to separate it; so the faithful are mixed up in one Church with the unfaithful; but persecution comes as a wind, that, tossed by Christ’s fan, they whose hearts were separate before, may be also now separated in place. He shall not merely cleanse, but throughly cleanse; therefore the Church must needs be tried in many ways till this be accomplished. And first the Jews winnowed it, then the Gentiles, now the heretics, and after a time shall Antichrist throughly winnow it. For as when the blast is gentle, only the lighter chaff is carried off, but the heavier remains; so a slight wind of temptation carries off the worst characters only; but should a greater storm arise, even those who seem stedfast will depart. There is need then of heavier persecution that the Church should be cleansed.