Yes. He "is able to keep you from falling."
Once glorified billions of us are creatures that are incapable of falling.
There are doubtlessly countless angels that will never fall.
I agree with you for I believe, "The New Covenant," is about just that.
The first man Adam was made a living soul, the last Adam a quickening Spirit and we therefore in him at his appearing and his kingdom. The Holy Spirit setting us apart for that.
The old covenant could not be kept by the living souls for it required something of them I do not believe living souls could do. At least to my knowledge in the history of living souls only one did.
Heb. 8:8
For finding fault with them, he saith,
They had responded, "All the LORD has said
we will do."
Behold, the days come, saith the Lord, when I will make a new covenant with the house of Israel and with the house of Judah:
10 For this the covenant that I will make with the house of Israel after those days, saith the Lord;
I will put my laws into their mind, and write them in their hearts: and
I will be to them a God, and they shall be to me a people: And they shall not teach every man his neighbour, and every man his brother, saying, Know the Lord: for all shall know me, from the least to the greatest. For I will be merciful to their unrighteousness, and their sins and their iniquities
will I remember no more.
At his appearing and his kingdom to judge the quick and the dead there will be, a being born again of spiritual beings in the image of the firstborn from the dead, resurrected Son of God, the quickening Spirit, last Adam, JESUS of Nazareth.
Born to sin no more eternal sons of God.
I have another question. Was the creation of the first man Adam in the image of God, the ultimate creation of man in the image of God or was it just the beginning of the creation of man in the image of God which would be finalized by the resurrection of the Son of Man born of woman, from the dead, the Son of God, the last Adam through which men who were born as the first man Adam could be born again as the last Adam?
Does not the following verses read in this order not say this very thing?
And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all he might have the preeminence.
Who is the image of the invisible God, the firstborn of every creature: Col. 1:18,15
Would this be relative to my original OP?