Therefore, &c. = So then as by means of one (act of) transgression (sentence came) upon all men unto condemnation, even so by means of one righteous act also (the free gift came) upon all men to justification of life.
righteousness of one. one righteous act. Greek. dikaioma. App-191., as Romans 5:16. Add "also".
justification. Greek. dikaiosis. App-191.
of. issuing in. App-17.