Parallel
2 Corinthians 11:14
Nestle 1904 Greek New Testament · Berean Standard Bible
καὶ οὐ θαῦμα αὐτὸς γὰρ ὁ Σατανᾶς μετασχηματίζεται εἰς ἄγγελον φωτός
And no wonder, for Satan himself masquerades as an angel of light.