Thanks, Dave. I understand where you are coming from more now. But there are a few things to think about.
You say that you do not believe that there is more than one covenant (one covenant of grace, I presume you mean), so therefore you take law in Romans to be the issue of law generally. I think Galatians should help you here. Please note Paul’s argument in Gal 4:21-26. Here Paul speaks of two covenants. Now I’m assuming that for you these two covenants correspond to the covenant of works versus the covenant of grace. If I’ve understood you correctly, I can see why you might do that; but it doesn't fit with the exegetical evidence right there in Gal 4:21-26.
Paul takes Isaac and Ishmael as symbolic of two covenants. What are these two covenants? “One is from Mount Sinai” who “corresponds to the present Jerusalem” (Gal 4:24-25). Ishmael is symbolic of the covenant made at Sinai, i.e., the Mosaic covenant, the covenant that enslaves “the present Jerusalem,” i.e., the Jews of Paul's day in their devotion to the Mosaic covenant. Isaac symbolizes “the Jerusalem above,” the new Jerusalem of the new covenant (Gal 4:26).
Now perhaps you will say, “Oh, but the Sinai covenant is singled out here as representing the covenant of works.” But this doesn’t fit the exegetical evidence either. Have a look at Paul’s argument in Gal 3:15-19. Notice what Paul says in Gal 3:17: “the law which came 430 years afterward [i.e., after the promises given to Abraham], does not annul a covenant previously ratified by God, so as to make the promise void.”
Paul is contrasting law with promise, and he means by this: Mosaic covenant (law) versus Abrahamic covenant (promise). Maybe I should call my approach to Paul not simply covenantal (since you claim that your approach is too, and it is) but rather salvation-historical covenantal. Paul is interested in the various covenants of salvation history: the Abrahamic versus the Mosaic versus the new. He wants to compare and contrast them. Why? I’ll talk about that later on below.
So your system of slicing all of the particular covenants of salvation history into two parts corresponding to the covenant of works and the covenant of grace is like obliterating the Lego blocks of salvation history originally put there by God. Your system is easy to follow, easily understood intellectually, but it’s not precise, and more importantly I think it gets in the way of understanding what Paul is on about.
But anyway, back to the rest of Gal 3. I can’t see with your view how you can interpret Gal 3:18 adequately. The law talked about in Gal 3:17 is definitely the Mosaic law, and it would be unnatural to change the sense of this term in the very next verse. Paul means in Gal 3:18 that the inheritance of eternal life cannot be limited to the law of Moses (i.e., the Mosaic covenant, which is exactly what the Judaizers were doing according to Acts 15:1, 5), otherwise the promise that God made to Abraham (the same promise of the inheritance of eternal life) would made void, and God would end up contradicting himself, and be seen not to be faithful to his promise to Abraham. The issue of the day, as Acts 15:1, 5 shows, was that the non-Christian Jews and Christian Judaizers thought that salvation and righteousness could only be obtained through the Mosaic covenant. Paul's argument in Galatians and Romans is directed at that specific issue. It's a salvation-historical issue. Is the Mosaic covenant the be-all-and-end-all of God’s soteric purposes?
Getting back to Gal 3:18, Paul is arguing that the inheritance of eternal life was promised to Abraham. The subsequent channeling of the promise of inheritance through the Mosaic covenant is a temporary narrowing, not a permanent narrowing of the stream of life to just Israel such that Gentiles can't participate in it unless they give up their Gentile citizenship to become Jews through circumcision and membership in the Mosaic covenant.
This salvation-historical approach makes sense, then, of Gal 3:19. The Jewish comeback to Paul would be: okay, if God already promised life to Abraham, what's the point of Sinai? Why the law of Moses and the Mosaic covenant? Isn’t that the pinnacle of God's purposes? No, says Paul. The law of Moses was given to Israel to increase the problem of sin, not to solve it, until the promised Messianic offspring arrived on the scene.
Jump over to Gal 3:23-29. How can you explain with your approach the fact that Paul could talk about a time before faith came except by sucking out of Paul’s words his intended sense of temporality? “Now before faith came, we were held captive under the law” (Gal 3:23). The phrase
the law here, following on from the discussion in Gal 3:15-19, is the law of Moses, not law in general. Notice also how the term faith is christologically defined in Gal 3:23-25. “Now before faith came, we were held captive under the law, imprisoned until the coming faith would be revealed” (Gal 3:23), which parallels “until Christ came” (Gal 4:24). The coming of Christ historically means the coming of faith (by the way, just as Hab 2:4 prophesied).
In Paul’s way of thinking faith existed while Abraham was a Gentile, but the Mosaic covenant put Israel under the works of the law, but with a view to everything reverting back to faith with the coming of the Messiah. Paul’s law/faith distinction here is not anthropological, but salvation-historical. The law of Moses was “our guardian,” i.e., a guardian over Israel, “until Christ came, in order that we might be justified by faith” (Gal 3:24). “But now that faith has come, we are no longer under a guardian” (Gal 3:25). Paul is not talking about abstract theological concepts, but the flow of the covenants in the salvation-historical time-space continuum.
You say that every covenant has law. That is true as a theological statement. But we need to understand Paul on his own terms. His use of terms such as
law,
faith,
works,
grace,
promise, etc., is typical of a Jewish rabbi who would take a key word in a passage of Scripture to designate the whole of that section of Scripture or a particular epoch in salvation history. You say faith always exists through history, that law always exists. That is true theologically, but not true of Paul’s usage. For Paul
promise solely designates the Abrahamic covenant (even though theologically and in terms of literary genre God's revelation to Abraham contains elements of both promise and law). In a similar way
law generally stands for the Mosaic covenant.
Grace stands for the new covenant age.
Faith is the appropriate response in the ages of promise and grace. Theologically speaking faith also existed in the age of law, but Paul in his Jewish rabbinical way doesn’t use his language that way. For him,
works (i.e., Mosaic faith) are the appropriate response to law. He is actually taking key terms from Scripture to designate by them the salvation-historical epochs in which they occur.
Please also consider Rom 5:12-21. On your view, how can you say that “sin was in the world before the law was given” (Rom 5:13)? For you law has always been around, but that is not Paul’s usage. Clearly in Rom 5:13, the law in question is the Mosaic law. The period where there was sin but no law corresponds in Rom 5:14 with the period from post-fall Adam to Moses at Sinai. Notice how Paul is interested in the epochs of salvation history.
Please understand Rom 5:20. This is a key verse: “the law came in to increase the trespass” in order that grace might abound. The term
the law here must be defined in the context of
the law in Rom 5:13. In other words,
the law is the law of Moses.
The trespass in the context is the trespass of the one man, Adam. Paul’s meaning is this: the Mosaic law was given to Israel in order to compound the fall of Adam, in order to highlight the grace of God revealed in Christ. It's a salvation-historical argument.
I limit Paul’s use of
the law to the Mosaic law in the vast majority of instances because the exegetical evidence points that way, as does the historical evidence of Acts 15:1, 5. Romans 7 is about fleshly Israel, i.e., old covenant Israel. Romans 8 is about how enslaved Israel (and the Gentiles) can be set free (the Gentiles set free from sin in Adam) by the new covenant in Christ. That is true to Paul’s own personal experience. The law of Moses that he was serving, which he thought was the way of life, actually “deceived” him and led him to oppose Christ. He thought he was serving God, but was doing the exact opposite. But then finally he saw the risen Lord Jesus, and realized that Jesus
was the Messiah, and that the Jewish zeal for the law of Moses was leading the Jews astray.
Paul is primarily talking about the law of Moses, not law in general.
But there is a connection between the two—somewhat. For Paul, there is a connection between
the law and
the commandment. For Paul
the commandment (at least in Rom 5:12-21) stands for the law given to Adam. Paul in effect argues in Rom 5:20 and Rom 7:7-11 that the Mosaic law replicates and compounds the effect of Adamic law, so there is a connection, but we have to see the salvation-historical connections before we get to that point, otherwise we are not doing justice to Paul’s use of language and his teaching.
Why is Paul interested in comparing the various covenantal epochs of salvation history? Because Jewish devotion to the Mosaic covenant was getting in the way of them receiving Christ, and getting in the way of his ministry to Gentiles. More significantly, by sticking to Moses, the lordship of Christ, God’s word, and God’s sovereignty in having the right to structure salvation history in the manner of his choosing, were being denied. The problem that Paul was dealing with in Galatians and Romans is primarily the problem of Jewish zeal for the law of Moses: see Rom 10:2 and Acts 21:20.
Now having said all that, I strongly agree with you, however, concerning how we as Christians are made to be slaves of righteousness through Christ and the Spirit. Paul obviously believed that the promise of Jer 31:33 was fulfilled in Christians. The law of the Spirit of life in Christ Jesus (eschatological torah, i.e., the gospel) has set you (Jews) free from the (Mosaic) law of sin and death (Rom 8:2). Just as Jer 31:31-33 prophesies, the law of Moses (which brought about the sin and death of Israel, which compounds the problem of sin in Adam) has been transformed by Christ and the outpouring of the Spirit, that with the (eschatological) law (of the gospel) written in our hearts, we have been set free to serve God as slaves of righteousness. And the same applies to the Gentiles in Adam.
It’s ironic that, in some ways, the situation for the Jews was worse than that of the Gentiles. The Gentiles were bound up in sin through Adam, but the Jews doubly bound: in Adam and also through the law of Moses! But “thanks be to God through Jesus Christ,” who sets us free from the commandment of sin and death in Adam, as well as the law of sin and death in Moses. Gentile and Jew, both equally set free through the new covenant in Christ!