Paul's Letter to the Galatians 3:23-29
3:23 Now before faith came, we were imprisoned and guarded under the law until faith would be revealed.
3:24 Therefore the law was our disciplinarian until Christ came, so that we might be justified by faith.
3:25 But now that faith has come, we are no longer subject to a disciplinarian,
3:26 for in Christ Jesus you are all children of God through faith.
3:27 As many of you as were baptized into Christ have clothed yourselves with Christ.
3:28 There is no longer Jew or Greek, there is no longer slave or free, there is no longer male and female; for all of you are one in Christ Jesus.
3:29 And if you belong to Christ, then you are Abraham's offspring, heirs according to the promise.
Here's a short piece about what Protestants view as "justification". It means something like straightening out your crookedness through Grace. That's a good deal.