Parallel
Galatians 6:3
Patriarchal Greek New Testament (1904) · Berean Standard Bible
εἰ γὰρ δοκεῖ τις εἶναί τι μηδὲν ὤν, ἑαυτὸν φρεναπατᾷ.
If anyone thinks he is something when he is nothing, he deceives himself.