It seems Paul is saying that “Yes, you are justified by doing the work of the law” but then says “you are made righteous and justified by faith and not doing the work of the law”.
If you’re talking about Rom 2:13 St. Paul is saying,
those who do the works fo the Law are justified by God.
It’s like this. Let’s say that you see a little old man trying to
shovel snow off his driveway. He’s stumbling around and you feel
sorry for him. So, you take the shovel and make short work of the
snow. THAT is a meritorious work in God’s eyes.
When you go to Church and call upon the name of the Lord with faith, you can’t bring the shovel and scoop your sins out of your soul. But God will see your good work and
He will number you amongst the Sheep and He will justify you
because you have done His will.
In that example:
Do you see how those who do the works of the law are justified?
Do you see how they are justified by their faith APART from their
works?
If he is addressing the Judaizers then why would he ever tell them that they are justified by doing the “work of the law”?
They believe they are justified by doing the works of the Law. He is
correcting them and being more precise. Those who do the
works of the law, are justified by God.
Isn’t that what he was trying to teach against?
No, he is Teaching about the Sacraments. Only those who do
God’s will are justified, BY GOD. No one can say, “Look, I’m just
because I’ve done God’s will.” God is the judge of who does His
will.
In the same way, no one is justified because they say, “Look, I’m justified
because of my faith.” God is the judge of a man’s faith, as well.