I want to take an example of a command in the "letter" and show how it can only be fulfilled in the "Spirit"...Maybe that will be more helpful? Lets look at "thou shalt not covet"... Now according to the "letter" God demands that we do not look upon the things others have and desire them for our own or in any way put them above God (idolatry) And just as Christ brought the Law to its highest standard, we should see that all sin is a matter of the heart before it is a matter of action. The rich young ruler "thought" that he had kept the Commandments from his youth. What did the Lord do? He told him to sell it all..give it to the poor and follow Him. Now this young man was breaking several of the commandments, but could not see it? He placed these things above following God...but did not see it...he was coveting these things but did not see it. That's why the Lord used the law..to show us we are all guilty according to our own ability to keep what is written. I will leave that out for discussion before I continue.
and covetousness, which is idolatry:
I want to continue on this point.. The "letter"..written code..of the law, demands righteousness from sinful man. Even if some cannot not understand or agree with the truth, the "letter" produces sinful lust in the flesh of all men. The purpose being, to manifest the "sin" in the flesh to all men, so that all will become guilty before God.
Ro 3:19 ¶
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:
Ro 7:6
But now we are delivered from the law, that being dead wherein we were held; that we should serve in newness of spirit, and not in the oldness of the letter.
7 ¶ What shall we say then? Is the law sin? God forbid. Nay, I had not known sin,
but by the law: for I had not known lust, except the law had said, Thou shalt not covet.
8 But sin, taking occasion by the commandment,
wrought in me all manner of concupiscence. For without the law sin was dead.
9 For I was alive without the law once: but when the commandment came, sin revived, and I died.
10 And the commandment, which was ordained to life, I found to be unto death.
11 For sin, taking occasion by the commandment, deceived me, and by it slew me.