Parallel
1 Corinthians 8:2
Patriarchal Greek New Testament (1904) · Berean Standard Bible
ἡ γνῶσις φυσιοῖ, ἡ δὲ ἀγάπη οἰκοδομεῖ. εἰ δέ τις δοκεῖ εἰδέναι τι, οὐδέπω οὐδὲν ἔγνωκε καθὼς δεῖ γνῶναι·
The one who thinks he knows something does not yet know as he ought to know.