Law (1) – The system of rules which a particular country or community recognizes as regulating the actions of its members and which it may enforce by the imposition of penalties; Statutes and Ordinances designed for the purpose of constraining behavior.
Law (2) – A statement of fact, deduced from observation, to the effect that a particular natural or scientific phenomenon always occurs if certain conditions are present (gravity, magnetism, etc.).
Law is the opposite of Grace; you cannot mix them; you can have one or the other, but not both.
Romans 3:19-21 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;
Galatians 3:24 Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.
The first-problem with the law is that there is no Salvation or Redemption available through the law.
Galatians 2:16-21 Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified. [17]But if, while we seek to be justified by Christ, we ourselves also are found sinners, is therefore Christ the minister of sin? God forbid. [18]For if I build again the things which I destroyed, I make myself a transgressor. [19]For I through the law am dead to the law, that I might live unto God. [20]I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me. [21]I do not frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain.
I Corinthians 15:56 The sting of death is sin; and the strength of sin is the law.
The second-problem with trying to live under the law is that you are accountable to every letter of the law; if you break even one of them in the slightest, you have broken every one of them completely.
Galatians 3:12 And the law is not of faith: but, The man that doeth them shall live in them.
You cannot claim the Grace of God and then list requirements (laws) to qualify for that Grace or to retain that Grace, which is what religion and Christianity does.
Galatians 4:21 Tell me, ye that desire to be under the law, do ye not hear the law?
I Timothy 1:6-7 From which some having swerved have turned aside unto vain jangling; [7]Desiring to be teachers of the law; understanding neither what they say, nor whereof they affirm.
See also Christian, Dispensation, Faith, Grace, Ye