Romans 3:27 Where, then, is boasting? It is excluded. Because of what law? The law that requires works? No, because of the law that requires faith.
No, it is the law of the Spirit of life in Christ Jesus, which law, Christ alone brought forth and satisfied. Notice it was that law itself that made Paul free, not by anything that Paul did.
[Rom 8:1-2 KJV]
1 [There is] therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit.
2
For the law of the Spirit of life in Christ Jesus hath
made me free from the
law of sin and death.
True belief comes as a gift, otherwise to acquire belief becomes a law
[Rom 10:4 KJV]
4 For
Christ [is] the end of the law for righteousness to every one that believeth.
Romans 4- What then shall we say that Abraham, our forefather according to the flesh, discovered in this matter? 2 If, in fact, Abraham was justified by works, he had something to boast about—but not before God. 3 What does Scripture say? “Abraham believed God, and it was credited to him as righteousness.”[
a]
The 'him" in verse 3 is God, not Abraham.
4 Now to the one who works, wages are not credited as a gift but as an obligation. 5 However, to the one who does not work but trusts God who justifies the ungodly, their faith is credited as righteousness.
No not "their faith" - "his faith" : Christ's faith. Only Christ's faith is righteous.
[Rom 4:5 KJV]
5 But to him that worketh not, but believeth on him that justifieth the ungodly,
his faith is counted for righteousness.
[Phl 3:9 KJV]
9 And be found in him, not having mine own righteousness, which is of the law, but that which is through the
faith of Christ, the righteousness which is of God by faith:
Romans 4 -13 It was not through the law that Abraham and his offspring received the promise that he would be heir of the world, but through the righteousness that comes by faith. 14 For if those who depend on the law are heirs, faith means nothing and the promise is worthless, 15 because the law brings wrath. And where there is no law there is no transgression.
16 Therefore, the promise comes by faith, so that it may be by grace and may be guaranteed to all Abraham’s offspring—not only to those who are of the law but also to those who have the faith of Abraham. He is the father of us all.
Christ's faith. Any righteousness is in relation to faith is Christ's faith, not ours. Otherwise, it couldn't be by grace. Only Christ's
faith was righteous.
[Phl 3:9 KJV] 9 And be found in him, not having mine own righteousness, which is of the law,
but that which is through the faith of Christ, the righteousness which is of God by faith:
Gal 2: 16- know that a person is not justified by the works of the law,
but by faith in Jesus Christ. So we, too, have
put our faith in Christ Jesus that we may be justified by faith in[
a] Christ and not by the works of the law, because by the works of the law no one will be justified.
No, is justified by the "faith
of Christ. g2424 ("Christ") below is genitive, demonstrating ownership: Christ's faith. Faith in Christ
is a possible translation of your first 'faith in Christ", if the "faith in" represents a faith that is within Christ, not towards Christ.
[Gal 2:16 KJV] 16 Knowing[G1492] that[G3754] a man[G444] is[G1344][G0] not[G3756] justified[G1344] by[G1537] the works[G2041] of the law,[G3551] but[G3362] by[G1223] the faith[G4102] of Jesus[G2424] Christ,[G5547] even[G2532] we[G2249] have believed[G4100] in[G1519] Jesus[G2424] Christ,[G5547] that[G2443] we might be justified[G1344] by[G1537] the faith[G4102] of Christ,[G5547] and[G2532] not[G3756] by[G1537] the works[G2041] of the law:[G3551] for[G1360] by[G1537] the works[G2041] of the law[G3551] shall[G1344][G0] no[G3756][G3956] flesh[G4561] be justified.[G1344]
4 Have you experienced[b] so much in vain—if it really was in vain? 5 So again I ask, does God give you his Spirit and work miracles among you by the works of the law, or by your believing what you heard? 6 So also Abraham “believed God, and it was credited to him as righteousness.”
Spiritual hearing - Christ's faith(fulness).
8 Scripture foresaw that God would justify the Gentiles by faith, and announced the gospel in advance to Abraham: “All nations will be blessed through you.” 9 So those who rely on faith are blessed along with Abraham, the man of faith.
Faith is not a work!
Those who rely on Christ's faith(fulness), not theirs - justification is solely by grace through Christ's faith.
Faith is not a work only if it is given solely as a gift. If we believe in a faith manufactured of ourselves, then it is a work and not only a
work but not a true faith: that which one believes to have brought his faith is that which his faith is in.
[Rom 3:24 KJV] 24 Being
justified freely by his grace through the redemption that is in Christ Jesus: