#61 Art. IV “Justification” of the Apology of the Augsburg Confession.

Secondly.—It is certain, that even those who are regenerated through faith and the Holy Spirit, are nevertheless not entirely pure, and do not keep the law perfectly, while this life continues. For, although they receive the first fruits of the Spirit, and though the new, yea eternal life has made a beginning in them, some portion of sin and evil desire still remains in them, and the law finds much whereof to accuse them. Hence, although love to God and good works shall and must dwell in Christians, still they are not justified before God on account of such works of their own, but for the sake of Christ, through faith. Confidence in our own fulfillment of the law, is pure idolatry, even blasphemy against Christ, and it must finally fail and lead us to despair. (Henkel Translation, p. 186-187).