1 What advantage then hath the Jew? or what profit
  is there of circumcision?
   2 Much every way: chiefly, because that unto them
  were committed the oracles of God.
   3 For what if some did not believe? shall their
  unbelief make the faith of God without effect?
   4 God forbid: yea, let God be true, but every man a
  liar; as it is written, That thou mightest be
  justified in thy sayings, and mightest overcome when
  thou art judged.
   5 But if our unrighteousness commend the
  righteousness of God, what shall we say? Is God
  unrighteous who taketh vengeance? (I speak as a man)
   6 God forbid: for then how shall God judge the
  world?
   7 For if the truth of God hath more abounded through
  my lie unto his glory; why yet am I also judged as a
  sinner?
   8 And not rather, (as we be slanderously reported,
  and as some affirm that we say,) Let us do evil, that
  good may come? whose damnation is just.
   9 What then? are we better than they? No, in no
  wise: for we have before proved both Jews and
  Gentiles, that they are all under sin;
  10 As it is written, There is none righteous, no, not
  one:
  11 There is none that understandeth, there is none
  that seeketh after God.
  12 They are all gone out of the way, they are
  together become unprofitable; there is none that
  doeth good, no, not one.
  13 Their throat is an open sepulchre; with their
  tongues they have used deceit; the poison of asps is
  under their lips:
  14 Whose mouth is full of cursing and bitterness:
  15 Their feet are swift to shed blood:
  16 Destruction and misery are in their ways:
  17 And the way of peace have they not known:
  18 There is no fear of God before their eyes.
  19 Now we know that what things soever the law saith,
  it saith to them who are under the law: that every
  mouth may be stopped, and all the world may become
  guilty before God.
  20 Therefore by the deeds of the law there shall no
  flesh be justified in his sight: for by the law is
  the knowledge of sin.
  21 But now the righteousness of God without the law
  is manifested, being witnessed by the law and the
  prophets;
  22 Even the righteousness of God which is by faith of
  Jesus Christ unto all and upon all them that believe:
  for there is no difference:
  23 For all have sinned, and come short of the glory
  of God;
  24 Being justified freely by his grace through the
  redemption that is in Christ Jesus:
  25 Whom God hath set forth to be a propitiation
  through faith in his blood, to declare his
  righteousness for the remission of sins that are
  past, through the forbearance of God;
  26 To declare, I say, at this time his righteousness:
  that he might be just, and the justifier of him which
  believeth in Jesus.
  27 Where is boasting then? It is excluded. By what
  law? of works? Nay: but by the law of faith.
  28 Therefore we conclude that a man is justified by
  faith without the deeds of the law.
  29 Is he the God of the Jews only? is he not also of
  the Gentiles? Yes, of the Gentiles also:
  30 Seeing it is one God, which shall justify the
  circumcision by faith, and uncircumcision through
  faith.
  31 Do we then make void the law through faith? God
  forbid: yea, we establish the law.

...to Romans chapter 4