Bede, on Rev 10:1

“And I saw another mighty angel come down from heaven, clothed with a cloud, and a rainbow was on his head, and his face was as the sun, and his feet as pillars of fire.”

“And his face was like the sun, etc. With the face of the Lord shining, that is, his knowledge manifested through the glory of the resurrection, his feet are prepared to evangelize and proclaim peace on the mountains (Romans X), illuminated by the fire of the Holy Spirit, and established like pillars. For James, Cephas, and John seemed to be pillars of the Church.”

Imported from an open dataset — not yet checked against the printed edition.