**He will do his good works through you.**
So you do believe in good works! Bingo!
Don't you think that the Lord motivates Catholics to their good works in a like manner?
There is nothing wrong with good works. People should do them but not to gain salvation. When you are free from judgement, you are free to focus on the Lord; not on being good enough. The Holy Spirt is the motivator. The Holy Spirit is equal with the Father and the Son. That means they all live within you and how can you live a sinful life with their Spirit within you?