The only occurrence of the phrase. Compare Act 13:10, and see Joh 8:44.
Righteousness
Here the article is wanting, compare 1Jo 3:7. Righteousness is regarded, not in its completeness, but as bearing a particular character. It will be interesting to follow out the same distinction between the following words with and without the article: ἀμαρτία sin; ἀγάπη love; ζωή life; ἀλήθεια truth.