Romans 3:27-28 Holman Christian Standard Bible (HCSB)
27 Where then is boasting? It is excluded. By what kind of law?[a] By one of works? No, on the contrary, by a law[b] of faith. 28 For we conclude that a man is justified by faith apart from the works of the law.
Romans 4:1-8 Holman Christian Standard Bible (HCSB)
Abraham Justified by Faith
4 What then can we say that Abraham, our physical ancestor,[a] has found? 2 If Abraham was justified[b] by works, he has something to brag about—but not before God.[c] 3 For what does the Scripture say?
Abraham believed God,
4 Now to the one who works, pay is not considered as a gift, but as something owed. 5 But to the one who does not work, but believes on Him who declares the ungodly to be righteous,[e] his faith is credited for righteousness.
David Celebrating the Same Truth
6 Likewise, David also speaks of the blessing of the man God credits righteousness to apart from works:
7 How joyful are those whose lawless acts are forgiven