Hey Ken,
yes, perhaps we are talking past each other somewhat, but hey I am learning a lot and your challenging my thinking, so praise God. I am stressing that Paul's interpretation of Abraham in light of the New Covenant turns upon the hinge of faith. We are descendants of Abraham and heirs of the covenant because we are of the faith of Abraham and we believe in the Seed that was promised to him. I am confident that we agree on this. The departure is happening due to your argument that circumcision marks off those who have an interest in the covenant promises. As for children being the usual means for propagating believers, I don't have a problem with that. We can agree on this. My problem is that the texts in question do not address this and should be used to argue for it, and it's not enough to say that it's "embedded" somewhere in the Abrahamic context. Paul is not making any point regarding covenant children and their status. In fact, I would argue that every time Paul, and the NT, speak of Abraham's children, he is usually making the point that
some are children of promise, some are not;
some are included, others are not.
Again, what is circumcision? Gen 17:11, "You shall be circumcised in the flesh of your foreskins, and it shall be a sign of the covenant
between me and you." It is a sign of the covenant between God and Abraham (and ultimately, the promised Seed). Paul gives further insight that it was the confirmation of the righteousness that comes by faith. Presbyterians are looking for the "big abrogation" in the way God deals with his covenant people, when all that is necessary is to note what was going on from the beginning. Circumcision was in NO way an indicator that the individual had an interest in the covenant promises (Ishmael, Gen 17:23). Those who bore the sign were not promised that the Messiah would descend through him, or that they would receive the land, or that God would walk with them. It always pointed back to the transaction that God made with Abraham and held no power to secure covenant blessings to the one who received it. There is a distinction that is often missed in covenant theology between the circumcision Abraham received in his flesh, and the circumcision received by his household. Abraham was circumcised as a result of God's promises to him. His household was circumcised because of their affiliation with Abraham. The Presbyterian view lumps circumcision altogether as a single symbol, as if to say, 'if you are marked, then you are in covenant with God.' If you want to speak of God's economy, it has always been his intention to actually save, successfully establish promises, to efficaciously circumcise the heart, not to make promises to entire families but not make good on those for most of them.
Therein is my confusion with the Presbyterian view. On the one hand, they make it sound as if it holds inherent spiritual authority to mark off those who are included in the covenant of grace, with real promises and blessings to those belonging to that household, and with grave consequences for those who step outside of it. On the other hand, when it becomes clear that not all who are marked are in the real covenant, then it conveniently becomes an external administration, a mere physical illustration of the gospel that says nothing about the person receiving it.
This is very different from NT baptism. Baptism by water and by the Spirit were essentially united. People were baptized because it was assumed that the Spirit had regenerated their hearts, buried them in Christ and raised them through faith; it was perceived that they were circumcised in heart. We have no evidence that the Apostles baptized people saying, "This is merely a picture of the gospel, of what
may happen to you if you believe," or, "You're externally and conditionally in the covenant for now; we'll see if God
actually saves you."
Back to the application of the Korean family that I mentioned earlier ... it is not that the church was baptizing pagans. The parents had become Christians, albeit late in life. They were baptized in a Presbyterian church which apparently practiced its theology faithfully: Only the mother and father were believers, but the son, well into his thirties but still living at home and showing no signs of personal faith was "forced" into baptism - after all, why should he not come under the external administration of the covenant as a result of being in the family of faith? Those in Abraham's house were circumcised regardless of the age, why not the same for baptism? They actually performed their household baptism to a Tee! That we should reel against this practice shows the inconsistency in Presbyterian thought, that is, it is fine for an infant to be baptized prior to faith, but the rules change when he is grown and able to believe for himself.
In the end, Presbyterian thought suggests that one can lay claim to the covenant through a family line. But this is expressly shot down even in the OT in the case of Abraham's and Isaac's own children. But hear me again, this is not to deny the importance of raising godly children, or of the plan that God has for them in propagating the gospel. Those are all fine and dandy.
