What is the point of the gospel? To redeem a people. But when are they redeemed? Now, here on earth. What is the power of the gospel? Love working through the soul of an individual. How does a person know it is happening? They do loving things, they care and think of others, they are sensitive to the situations they find themselves in and strive to bring about the best outcomes.
The beginning of the transformation cannot be earnt because it is Jesus, his life, his sacrifice, his love demonstrated for all to see. It is an eternal marker of you can trust me, this is who I am.
Now you can agree that love is a good way to live, and do the actions without the source, but you will dry up like a river bed with no water. Works need to be the honest outflow of your heart, or they are dead works done to justify yourself.
I therefore find this kind of discussion odd, because to me it seems plain, works are a testimony to the work done within, the engine of Jesus's love and life working within a person, not earning a way to heaven, because those with Jesus's love have already arrived in the Kingdom.
The problem with the miracle and wonders groups, is they believe in a magical zap, which is not the gospel, that is gnostic ideas, and does not address the core failure of mankind and sin.