For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God.
Since they did not know the righteousness of God and sought to establish their own, they did not submit to God's righteousness.
Ἀγνοοῦντες γὰρ τὴν τοῦ Θεοῦ δικαιοσύνην, καὶ τὴν ἰδίαν δικαιοσύνην ζητοῦντες στῆσαι, τῇ δικαιοσύνῃ τοῦ Θεοῦ οὐχ ὑπετάγησαν.
Agnooyntes gar tēn toy Theoy dikaiosynēn, kai tēn idian dikaiosynēn zētoyntes stēsai, tē dikaiosynē toy Theoy oych ypetagēsan.