Parallel
Matthew 23:28
Nestle 1904 Greek New Testament · Berean Standard Bible
οὕτως καὶ ὑμεῖς ἔξωθεν μὲν φαίνεσθε τοῖς ἀνθρώποις δίκαιοι ἔσωθεν δέ ἐστε μεστοὶ ὑποκρίσεως καὶ ἀνομίας
In the same way, on the outside you appear to be righteous, but on the inside you are full of hypocrisy and wickedness.