In my 77 years I have come to learn that beliefs are not real, only speculation and anyone can believe anything about a God. I to had beliefs about God. But a day came just in the life of Jesus in Matt 3:16 when God Himself came by the Spirit He is and said here I Am, here is My will for you.First of all, thank you for your thoughtful reply. I'm not entirely knowledgeable of the Reform viewpoint, so I won't comment on that. Except to say I don't get the sense they see their believing as "involuntary." I realize you didn't say that precisely, but that their salvation was an involuntary act, but since we are talking about faith and believing, I think their view is very close to Thomas Aquinas in my Catholic tradition, who said that God changes you so as to then believe voluntarily (by the grace of a pre-movement or pre motu). Everything you do - believe, repent, hope, love - is something you do because you yourself want to do it, voluntarily, willingly. To call it by grace is to say that you feel moved to do so, as the result of an interior motion inside you that is not by your own creation but moves you from within yourself as a gift/grace. That said, I think you are correct that the Reform view is that you cannot resist this motion but will always assent or acquiesce, whereas the Catholic view is that you do indeed retain the power to throw it off and refuse it. For example, a person can feel initial compassion for someone by the road, as the Good Samaritan felt, but then deny it and walk on by. Or you can feel yourself moved to believe a story you are being told, but then deny it and refuse to believe it, saying, "I almost fell for that."
I tend to agree with what you are saying, so perhaps there is a semantic issue here as to what you mean as "under his own power." Jesus says that the kingdom of heaven is like a treasure hidden in the field, which the early church fathers (Methodius, for example) interpreted to mean that it lies buried within our soul. So we have within us the abilities to believe and to have compassion, for example, but we are alienated from it. Our egos have an egotistical nature that fears death and will do anything for survival, and can cut us off from and bury our compassion or belief in goodness. Our egotistical nature is inherently self-serving, and so we are alienated from our inner self which is made in the image of God and is a descendant/child of God, as you say. So when I read Paul saying that the Spirit strengthens our inner self, the Spirit is adding strength to something that is already within us. But I think of myself as the ego or "outer self/man," with my ego-nature (which is by nature egotistical and "by nature a child of wrath"), even though I have within myself an inner self made in God's image and a child of God with faith, hope, generosity, compassion, love. And for me, as the ego-self, I will receive all internal movements and impulses coming from my inner self as a grace. We all have compassion within us, but it is not the ego making it, but rather comes from within us, or we find it within us as a gift or treasure waiting to be discovered as in a field, as Jesus says.
I think you are right that the Romans 1 people who are handed over to their own delusions started off in a more neutral position and went downhill from there. (I don't know what the Reform definition of "depravity" is, so I can't comment on that.) I think if you are moved to compassion, for example, and then deny it, you can be held responsible for not having been compassionate. You are only responsible because you were given the grace to do something, but threw off and denied the grace.
Is this faith coming from your ego-self or from your inner self?
I see the bible saying that faith is a gift of the Spirit, and that the Spirit strengthens the inner self, so that you can now believe.
I agree that Paul says that you receive the Spirit through faith (Galatians 3). But I see that faith as being already a grace from the Spirit, leading you to welcome the Spirit so as to indwell you. God draws you by moving you to believe, and then you can call on God for the blessing of the Spirit as an indwelling presence to strengthen your inner self.
There is a huge difference in believing things about a God and God Himself coming and manifest Himself in you and opening up His will in you. And when you read the before and after Matt 3:16 when God came to him and open in that man who He is and all of His heaven, look at the change in that mans disposition. He was not the same after that at all. In fact the very ones who once reverend him as a rabbi even from a young age, after that enlightenment by God Himself were the very ones who had him crucified for blaspheme.
Beliefs? Just look at all the different ones in this very forum. How many here has received from God the same as Jesus did? It isn't hard to distinguish who is like in the Father and who isn't.
Gods ultimate purpose is that He may be manifest in my mortal man. I cant count the times I have been deemed as a blasphemer for that very statement.