Nathan,
    Praise the LORD.
You rightfully took away the glory from us, fallen creatures, and placed it back upon Jesus.
When an attempt is made to use the scriptures to teach a salvation maintained by works, the glory is thus placed on man.
My guess is that most who teach that, do not desire to take the glory from Jesus, and to put it upon man.
I would further say that they are probably totally unaware that this is what has actually been done.
Perhaps they are driven by a desire to live pleasing to the LORD, which in itself is a great thought.
We should all desire to live pleasing to the LORD.
But somewhere along the way, an attempt is made to show that the scriptures teach something more.
That teaching is that our salvation is kept or lost, depending upon our merit, or lack thereof.
It is very strange, I believe, to think that the scriptures would first teach:
    that the blood of Jesus is greater than any sin of ours, no matter what we've done, to wash it away and save us,
    to only then secondly teach that after we're saved, our sin is greater than his blood, able to undo it.
The law is a reflection of the character and holiness of a perfect being, the LORD.
All men fall short of the law, unable to keep it.
Many strive to keep parts of it, but then even our most righteous deeds are as filthy rags.
That is because we strive to do it by our own power, the power of our flesh.
But our flesh is fallen and corrupt, and it is impossible for our flesh to produce truly righteous fruit.
The only one whoever kept the law, was the LORD himself, in his incarnation.
The LORD cannot sin, and he, by his very nature, perfectly lived his own holy law, in a body, here on earth.
So now, after a person is saved, yet still has their fallen flesh, how can they live perfectly as Jesus did?
"They" cannot, but "he" can.
When a saved person submits to the Holy Ghost, then it is "he", within, living the only way he can, holy.
The key difference is between submitting to the Holy Ghost or fallen flesh striving to maintain good works.