The Catholic church has set up its own law to be followed.
Technically the Catholic church can say that they don’t teach or hold to the doctrine that salvation is by the Law (capital L) as God gave the Jews, but in principle, that’s exactly what they hold to.
Substituting its rules, regulations, ceremonies, sacraments, etc, doesn’t make any difference. All they’ve done is labeled something different. In essence, it’s the same teaching. You have to DO something in the way of works to be saved. They’ve just made up their own list instead of going by God’s.
Correct.. The Church has a body of Canonical Law not less complex and perhaps more complex than the rules of Judaism. The difference is that the Church does not say that our laws save anyone. The law helps figuring out correct behavior. Breaking a law can condemn. But following laws does not save.