You seem to be missing the fact that the Law (Torah) is an expression of God’s nature but it is not all inclusive of that nature.
This is a false argument! The law is the revelation of
ALL OF GOD'S
MORAL NATURE - His holiness. The terms "righteous....righteousness....God's glory....holiness....sin" are all moral terms and have to do with moral nature and are only definable by God's revealed will (His law). No one argues that the Law is a revelation of all of God's nature, just his moral nature - his holiness - and Romans 3:23 proves that as sin is defined of coming "short of the GLORY of God." His glory is the standard of holiness or righteousness or right and wrong behavior because it is summed up in one MORAL term "God is LOVE" and love is a "moral"behavioral term and "keeping his commandments" is also defined as "love" "for this is the love of God that we keep his commandments" (1 Jn. 5:3) and keeping commandments is a behavioral issue.
The Mosaic law in covenant form is merely the expansion of the Moral law into civil and ceremonial applications. However, God's command in Genesis 2:17 is the summary of God's Law and expression of His MORAL nature as it is about one issue and one issue only - WHOSE WILL IS SUPREME. The LAW of Conscience is moral law. The Law of Moses is moral law. Moral Law is the basis of all Law as ultimately any disobedience of any law of God is moral issue called "sin."
What mankind has broken is not God’s moral or ethical law. It is a religious law, a covenantal law.
Another false argument! All mankind was condemned by one act of Adam which is the root of all moral rebellion against God as it challenged God's right to be final law giver or God. Sin entered the world by this one rebellious act and all mankind was condemned by this one act LONG BEFORE Mosaic covenant law was instituted. Sin is a moral issue as sin is evil works and works have their root in the human HEART which is the MORAL CENTER of man's being (Mt. 15:18-19). Works originate with the determined thoughts of the heart regardless if they are made manifest in words or deeds. God's law originates from his HEART and is expressive of his determined thoughts,words and deeds. All behavior, human and divine is a MORAL issue of right and wrong, righteousness and unrighteousnes, holiy and unholiness.
Your view is not based merely on a misunderstanding of the nature of sin, but the moral nature of God.
It is a law based on God, not godly behavior (moral equates to behavior, as you said earlier). Our unrighteousness extends beyond obedience to God’s command. Our disobedience demonstrates misplaced faith, and this is truly the problem. It is not our sin, but our sinfulness (something that you have already affirmed).
This is another false argument based upon irrational thinking. First sin is a moral issue and the inseparable cause of our sinfulness which is immoral behavior. Immoral behavior does not originate from amoral sources as your rationale demands.It is a law based upon God's MORAL nature as all of God's words and works are expressions of HIS HEART or the moral seat of His nature, just as it is in all his rational creatures (Mt. 15:18-19).
Second, our unrighteousness NEVER extends beyond disobedience to God's command. Genesis 2:17 is all about whose revealed will is supreme. This is the essence of divine law- God's will versus the will of the creature. The tree of knowlege of Good and Evil is all about who has the right to determine the knowledge of right and wrong as whoever does that is proclaiming themselves to be God. Is it you or your Creator? Is it you or your conscience? Is it you or God's revealed will in whatever form it comes? This is the ultimate MORAL issue - the right to determine good and evil!
The problem, then, is not based on the Law (the Law demonstrates sins which are but manifestations of our nature).
No one has suggested the problem lies with the Law. Our issue is properly defining the nature of the Law as an expression of God's holiness which is the MORAL nature of God. Nobody is arguing the Law is expressive of the WHOLE nature of God but only of His HOLINESSS or MORAL nature. You are making the irrational argument that disobedient behavior is not a moral issue, or to say it another way, that sin is not a moral issue when in fact sin is an issue of the human HEART which is the moral center of man's nature and from which all determined thoughts, words and actions are derived (Mt. 15:18-19) just as it is true in the case of God's determined thoughts, words and actions or what the Bible calls works.
If our condemnation then is not truly based on the Law but on our nature,
Our nature is the result of sin (Rom.5:12) or violation of God's Law in Genesis 2:17.The entrance of the Mosaic covenant form of law merely made the Jewish condition more pronounced. However, no Jews existed between Genesis 1 and Genesis 25. Gentiles prior to the giving of the Mosaic covenant form both before and after Moses violated God's natural LAW of Conscience and it is still called "sin" and it is still God's Law (Rom. 2:14-15; 3:9 "Jews and Gentiles") and thus "all the world" is condemned as law breakers (Rom.3:19-20) including all "flesh" so that "every mouth" is condemned by what? By what? BY THE LAW of God - proving the Law of God is far more inclusive than the Mosaic form but yet who can deny that the conscience is MORAL law? Who can deny that rebellion against God's law is a behavior problem?
We are sinful because we are sinners by nature and it is all tracable to one man's "SIN" (Rom.5:12). So your whole line of reasoning collapses because you deny "our condemnation then is not truly based on the law as "sin is the transgression of the law" whether it be law of conscience, or a prescribed law (Gen. 2;15) or a covenant expression of law (Moses) because all law has its origin with God's moral nature - HIS HEART.
then Christ’s righteousness can’t be his keeping the Law but his faith in the Father.
Another false argument. No one has suggested that Christ ATTAINED or OBTAINED righteousness by law keeping - no one! My position has consistently been that he was righteous by nature from birth as a man and that the Law simply DECLARED him such! Justification is about DECLARING one righteous or unrighteous. Condemnation of the Law comes by being unrighteous and unrighteous is defined by the standard of the Law. Righteous persons are not under the condemnation of the Law but will be justified (Rom.2:12). If you are not under the condemnation of the Law then you are without sin and therefore not subject to death as death is the result of condemnation. So Jesus tells the Jews "this do and ye shall live." Paul tells the Romans "doers of the law" "shall be justified by the Law" on judgement day rather than condemned unto death.
His keeping the Law was a manifestation of His faithfulness just as our disobedience to the Law (or God’s law) is a manifestation of our unfaithfulness.
Faithfulness and unfaithfulness are BEHAVIORAL terms and Behavior is definable as right and wrong and it is the law (specific law - Gen.2) and natural law (Rom.2:14-15) and covenant law that defines righteousness and unrighteousness.
And Scripture confirms this as Jesus emptied himself and humbled himself, and was obedient to God unto death, even the death on a cross – wherefore God exalted Him. What does Scripture say? Does Scripture say that this was because Jesus satisfied the demands of the Law? No, of course not. So why should we say it? Scripture says that it was because Jesus “emptied himself”, “became a servant”, “humbled himself”, and became obedient even to the death of a cross. This is not satisfying the moral demands of the Law. This is faith in God. And our righteousness is faith in Christ.
He emptied himself of manifest glory of deity.
Ga 4:4 But when the fullness of the time was come, God sent forth his Son, made of a woman,
made under the law,
Ga 4:5 To redeem them that were
under the law, that we might receive the adoption of sons.
His obedience is defined by being "made under the law" just as disobedience is defined by being "under the law." Why did "them" need redeeming? Because they were disobedient "under the law." Hence, "under the law" demands being made subject to the standard of the Law. Jesus was made subject to the standard of the law and proved to be obedient to that standard.