Consider this question and answer:;
From Catholic answers: http://www.catholic.com/video/is-evangelization-a-good-work
Is Evangelization a “Good Work?”
Independently of God? No.
Through faith alone in Christ alone? Yes.
It is commanded. Being obedient is not a good work, it is the expected of His family members. Catholicism turns that on it head, making obedience to the Catholic Church a necessary good works process, and tops it off with teaching a ritual drinking of the literal blood of Christ, a practice which God condemned for ALL THE GENERATIONS of Israel, which included the one into which Jesus was born.