Really it’s not that hard to figure out.
Ephesians 2: NASB
8For by grace you have been saved through faith; and that not of yourselves,
it is the gift of God;
9not as a result of works, so that no one may boast.
10For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand so that we would walk in them. (NASB)
We have to become His workmanship.
Marty and Frank discuss it.
Yes, we become His workmanship by entering communion with Him, 'apart from Whom we can do nothing' (John 15:5). Man was
made for this communion; it's the chief aspect of his
justice while its opposite, separation from God, is the chief aspect of the state known as Original Sin. This relationship is established via
faith and it must be maintained; we must remain in Him so that we continue to be a work of His that we cooperate in as our salvation, itself, is worked out. He continues to grace us and we're expected to respond, doing the works He's prepared for us, "investing" our "talents". And this relationship, to the extent that its healthy, naturally tends to exclude sin. In fact, works for the good of others, such as for "the least of of these" (Matt 25:31-46) as well as refraining and freedom from sin are the natural product of this relationship because, when performed for the right reasons, these acts or behavior are motivated by
love, the very nature of God we're to be transformed into. This means that the communion or relationship is most fully consummated and expressed to the extent that we love God with our whole heart, soul, mind, and strength and our neighbor as ourselves.
This relationship and the state of being it establishes and cultivates in man is the heart of man's justice, that which makes him right in the eyes of God, that which constitutes right order in His creation. It's the path we must be on, the orientation we must maintain, with His help.
The video, BTW, failed to portray much of anything close to reality and certainly didn't relate the Catholic position. In Catholicism, again, love is the heart of man's justice while faith is the root or foundation of that justice, the means to it. The two are not the same. And, "At the evening of life", as the RCC teaches, "we'll be judged on our love". This brings the whole of Scripture and the gospel into focus. Martin Luther and His Sola Fide doctrine come off as a bit shallow by comparison, or stifled, and even priggish. But maybe love has become too much of a hippie word for Christianity?
Again, works are the natural product of love, not faith, and love is the natural product of communion with God, who, alone, can produce that love in us, i.e.,
justify us.
"...if I have a faith that can move mountains but have not love, I am nothing". 1 Cor 13