Nobody is justified in law keeping, as the breaking of the law is them counted as uncircumcised.Romans 10:3-4 (NASB)
3 For not knowing about God's righteousness and seeking to establish their own, they did not subject themselves to the righteousness of God.
4 For Christ is the end of the law for righteousness to everyone who believes.
Matthew 5:17 (NASB)
17 "Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill.
2 Corinthians 5:21 (NASB)
21 He made Him who knew no sin to be sin on our behalf, so that we might become the righteousness of God in Him.
All those who are "in Christ" are, thereby, freed from the impossible effort of being justified by law-keeping. Christ is the believer's justification, not their "keeping the righteousness of the law," as you asserted, gordon777.
Romans 2:25 For circumcision verily profiteth, if thou keep the law: but if thou be a breaker of the law, thy circumcision is made uncircumcision.
But if they fulfil the righteousness of the law, they are no longer uncircumcised.
Romans 2:26 Therefore if the uncircumcision keep the righteousness of the law, shall not his uncircumcision be counted for circumcision?
God sent the Son to condemn sin the the flesh ( circumcision in the flesh/ to no longer have confidence in the flesh. Philippians 3:3.) so the righteousness of the law might be fulfilled in us. ( so our uncircumcision in the flesh is counted circumcision in the spirit/ the circumcision of Christ.)
We were counted in the past as uncircumcision by that which is called circumcision in the flesh made by hands.
But Christ abolished in His flesh the enmity, ( the ordinances/circumcision in the flesh) to make Himself one new man ( circumcision nor uncircumcision is nothing, but the new creature in Christ. Galatians 6:15.)
We were ( as Israel is now.) dead in the uncircumcision of our flesh, but were quickened, ( Israel is not quickened together with Christ.) together with Christ ( in faith/risen with Him. Colossians 2:12.) having been forgiven ( unlike Israel for their sins/breaking of the laws/being counted uncircumcised.) all trespasses. ( Israel who "keeps" law, is dead in sins/uncircumcision.)
Romans 8:3 For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:
4 That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.
Ephesians 2:11 Wherefore remember, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands;
Ephesians 2:15 Having abolished in his flesh the enmity, even the law of commandments contained in ordinances; for to make in himself of twain one new man, so making peace;
16 And that he might reconcile both unto God in one body by the cross, having slain the enmity thereby:
Colossians 2:13 And you, being dead in your sins and the uncircumcision of your flesh, hath he quickened together with him, having forgiven you all trespasses;