Parallel
James 2:19
Patriarchal Greek New Testament (1904) · Berean Standard Bible
σὺ πιστεύεις ὅτι ὁ Θεὸς εἷς ἐστι· καλῶς ποιεῖς· καὶ τὰ δαιμόνια πιστεύουσι καὶ φρίσσουσι.
You believe that God is one (note: Or that there is one God). Good for you! Even the demons believe that—and shudder.