If Paul did not die to the law, and you are trying to aquaint the law as only referring to the sacrificial system of which we are no longer under, then what was Paul saying here in wishing to be identified as apart from the law?
Philippians 3:1Finally, my brethren, rejoice in the Lord. To write the same things to you, to me indeed is not grievous, but for you it is safe. 2 Beware of dogs, beware of evil workers, beware of the concision. 3 For we are the circumcision, which worship God in the spirit, and rejoice in Christ Jesus, and have no confidence in the flesh. 4 Though I might also have confidence in the flesh. If any other man thinketh that he hath whereof he might trust in the flesh, I more: 5 Circumcised the eighth day, of the stock of Israel, of the tribe of Benjamin, an Hebrew of the Hebrews; as touching the law, a Pharisee; 6 Concerning zeal, persecuting the church; touching the righteousness which is in the law, blameless. 7 But what things were gain to me, those I counted loss for Christ. 8 Yea doubtless, and I count all things but loss for the excellency of the knowledge of Christ Jesus my Lord: for whom I have suffered the loss of all things, and do count them but dung, that I may win Christ, 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:
I do not see any mention of the sacrificial system here in what he was regarding as dung, but his identification with the law as being a Jew, then a Pharisee, then his zeal for God as a religious Jew, and finally his identification with the righteousness in the law as being blameless.
Paul addressed the futility of being identified with the works of the law again here:
Romans 10:1Brethren, my heart's desire and prayer to God for Israel is, that they might be saved. 2 For I bear them record that they have a zeal of God, but not according to knowledge. 3 For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God. 4 For Christ is the end of the law for righteousness to every one that believeth. 5 For Moses describeth the righteousness which is of the law, That the man which doeth those things shall live by them.
Romans 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:
Paul identifies the law as more than just the sacrificial system because it is by the law is the knowledge of sin.
......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.
The law is what man cannot do. That is the point of what Paul was meaning in Romans 7th chapter.
Even in a letter to the Galatians, Paul differentiates from his past as a law abiding Jew in relating to believing Gentiles.
Galatians 2:15 We who are Jews by nature, and not sinners of the Gentiles, 16 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.
That means no believer in Jesus Christ can make himself good or righteous by keeping the law religiously. To clarify: no believer can make a promise to never sin again for that would be departing from faith & from relying on Him as your Good Shepherd and thus trying to finish by the flesh what was begun in the Spirit.
Believers that have made commitments & promises to Christ are doing the same thing. Believers made promises to be good husbands & good fathers in the Promise Keepers' program which is a movement of man "for Jesus Christ", but if believer can make themselves good husbands & good fathers by simply making & keeping a promise, then Christ has died in vain, but the law was our schoolteacher in showing not only why we need the Saviour, but why we need God as our Good Shepherd.
This is why the just shall live by faith because this is God's turn now; not man's.
So if you are teaching to believers to look to themselves to be serious about following Jesus by keeping the law, then you are putting confidence in man in their religious flesh to follow Him.
You should be teaching believers to look to Jesus Christ in how serious & committed He is in helping us to follow Him as our Good Shepherd. Our eyes are not on us in keeping His commandments, but on Him to help us to do them which His commandments are not grievous.
1 John 3:22 And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight. 23 And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment. 24 And he that keepeth his commandments dwelleth in him, and he in him. And hereby we know that he abideth in us, by the Spirit which he hath given us.
Again: what identifies a children of God is by faith in Jesus Christ: not by keeping the law.
Galatians 3:22 But the scripture hath concluded all under sin, that the promise by faith of Jesus Christ might be given to them that believe. 23 But before faith came, we were kept under the law, shut up unto the faith which should afterwards be revealed. 24 Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith. 25 But after that faith is come, we are no longer under a schoolmaster.26 For ye are all the children of God by faith in Christ Jesus.
Other people will know we are christians by our love, but in God's eye, we are His children by faith in Jesus Christ.