A citation from the library
Didymus the Blind, on 1John 4:2
Didymus the Blind · c. A.D. 313–398
1John 4:2 · Douay-Rheims
“By this is the spirit of God known. Every spirit which confesseth that Jesus Christ is come in the flesh, is of God:”
On this verse:
“A spirit which comes from God will confess that Jesus Christ, although he was in the form of God, took upon himself the form of a servant and came in the flesh.”
Imported from an open dataset — not yet checked against the printed edition.