If you know that He is righteous, you also know that everyone who practices righteousness has been born of Him.
Ἐὰν εἰδῆτε ὅτι δίκαιός ἐστι, γινώσκετε ὅτι πᾶς ὁ ποιῶν τὴν δικαιοσύνην ἐξ αὐτοῦ γεγέννηται.