Faith is a work.
Jesus answered, "The work of God is this: to believe in the one he has sent." John 6:29.
You do err not knowing the Scriptures neither the power of God.
Jesus was making a play on words.
The people asked him: "What must we do, to do the work of God.
Jesus answered: This is the Word of God: to believe on him who has sent me.
IOW, There are no works that they could do to merit eternal life. The only thing that they could do is to believe. It is not a work, but it is faith. All other "works" fail. Faith alone saves. It was a play on words. They could not work their way to heaven, which is what Jesus was teaching.
Romans 4:1-5 is about not being saved by the work of circumcision, and the works of the law, like finding an animal and taking it to be sacrificed. Those are things people did, but we do not have to do those works anymore, because Jesus did it for us once and for all.
Nowhere is that passage speaking of circumcision. Talking about adding to the Word of God; that is just what you just did.
It teaches, first of all, that Abraham was justified by faith, and faith alone. He was not justified by works. If he was justified by works, he could not glory before God, but only before men, therefore his justification would be meaningless.
How is a man justified or made righteous?
Not of works, or good deeds, for that is a debt (what an employer would give as a wage). It is owed. But rather it is by grace--a gift.
To him that does no work, that man is justified. He does no good works at all but only believes, that is the man that is justified. There is no mention of the works of the law. It is not speaking of the law; it is speaking of good works in general. Good works don't save. Obedience doesn't save. Only faith saves and that is what this passage teaches--faith alone.
We are also to obey God. Apostle Paul and Apostle James explain that by faith Abraham did actions that were the result of obeying God.
You don't understand what James is teaching; he is speaking to Christians, that works are the natural outgrowth of a Christian's faith, and that is all.
Apostle Peter says people misunderstand Apostle Paul to their destruction.
Peter is talking about how people misunderstand Paul what he says about no works.
Just read the scriptures just before Peter says that.
2 Peter 3:14 So then, dear friends, since you are looking forward to this, make every effort to be found spotless, blameless and at peace with him.
Now read the scriptures just after Peter saying people misunderstand Paul to their destruction.
2 Peter 3:17 Therefore, dear friends, since you already know this, be on your guard so that you may not be carried away by the error of lawless men and fall from your secure position.
Peter speaks of obeying before and after the scripture where he says people misunderstand Paul to their destruction.
Do not be carried away by the error of lawless men and fall from your secure position.
Moriah did it ever occur to you, that that entire passage is directed to you.
Do not teach any longer that we do not have to obey to be saved or to stay saved.
Salvation is by faith alone in Christ alone through grace alone.
That is the gospel message.
Without belief in that message one cannot be saved.