if the New Covenant is the legal constitution of the Church in this age and the New Covenant consists of those who know the Lord, then there would seem to be a need to show intense effort to only include within the New Covenant those who have a credible profession of faith. Why? Because we want to ensure that the actual condition of the Church resembles the legal constitution of the Church as closely as possible. Of course, there must be the recognition that the actual condition of the Church still resembles the condition of the people of God under previous covenants, which means that there will be both believers and unbelievers. But we are trying, as much as it is possible in this fallen world, to only include those in the New Covenant who have credible professions. Am I making sense? And that is the difference between infants and adults. Because although infants may indeed be regenerate, they have not made a credible profession of faith. Therefore, it would seem to be rash to include them within the New Covenant before being reasonably convinced that they actually do possess faith in God. (Are you saying that Presbyterians are reasonably convinced that infants do possess faith in God?) The goal is to limit the amount of apostates as much as possible, because in so doing, the actual state of the church most closely resembles the legal constitution of the Church. If that is the case, it would seem to preclude baptizing infants.
Brennan,
Please allow me to challenge certain premises.
In the first place, its clear (in the above post) that you aren't distinguishing between the
substance (spiritual) and
administration (visible) of divine covenant, at least with respect to the New Covenant. If you acknowledge this, then you stand firmly in the Baptist tradition, which does not confess an earthly, temporal administration of the New Covenant; but only a spiritual and immediate administration.
Most Baptists I know do believe in something akin to a dual (internal/external) administration of previous covenants (e.g. Abraham, Moses); but according to Baptist theology, any external administration demanded was due to the absence of covenant fulfillment in Christ. And in their view, this defect was remedied in the New Covenant enactment. Classic covenant theology (CT) views this perspective as "overrealized eschatology," i.e., we aren't in heaven yet.
CT interprets
all the covenants as being made
exclusively between God and
believers, insofar as the realization of the blessings thereof. What we mean is that those who are "blessed with faithful Abraham" are always and only those who shared in the faith of Abraham. There weren't and aren't any real, eternal blessings for anyone, no matter how closely associated administratively with a particular covenant they are, who do not have the spiritual substance.
The corresponding interpretation regarding covenant-curses fits the CT scheme as follows: those who do not inherit the blessing with Abraham are those who are unbelievers. That is to say, those who instead receive the judgments of the covenant are those whose participation was limited to the external administration. Ishmael, Esau, many Israelites who died in the wilderness, Saul, Absalom, Jeroboam, Ahab, many Israelites whose wickedness brought on the exile--the list of the faithless is long.
You claim that our New Covenant duty is to "make intense effort" at including in our visible
presentation of New Covenant realities only verbal confessors--those who witness their voluntary opt-in attachment to this covenant. Simply depending on a personal statement doesn't seem to fit the definition of "intense effort" (not that I think Scripture calls for it); but I am aware that some Baptist churches do not baptize immediately upon profession of faith, but after a waiting period of some time--months or years--in an effort to see fruit of the initial profession.
Personally, I question the validity of any attempt to read the heart, whether short or long term. Presbyterians baptize mature converts upon their initial profession, usually with a brief period of catechesis (basic Christian instruction) beforehand; but generally grant the judgment of charity to the convert, that they have repented/abandoned known sin, or will do so upon further instruction (submission to discipline). If in your practical history the habit I've just described is essentially the method you know from your Baptist past, then I think that "intense effort" may be too strong a description.
Perhaps you mean that it
seems as if the Baptist credo-only practice is (somewhat) more rigorous than a Presbyterian's, given that an infant cannot volunteer to join this covenant, or protest his inclusion. But this observation is only meaningful
after one has determined that the credo-only practice exclusively warranted by Scripture. As far as practical evidence goes, I can only declare that upon considering typical baptismal-rites alone, if the USA is any reliable indicator: the practice of credo-only baptism does not increase one whit the likelihood that a particular church will be marked by faithfulness. If it be objected that the failure surely lies elsewhere, rather than in the baptismal practice; then that objection must also be granted to the Presbyterian.
The Presbyterian will generally agree with you, of course, in the idealized proposal: "we want to [ensure] that the actual condition of the Church resembles the legal constitution of the Church as closely as possible." The question is: how are we to
ensure this is the case? Is it by
preemptively exercising exclusionary discipline on the children of believers, and waiting on a cognitive exercise of their will before discipling (disciplining) them as members?
We might ask the question another way: Is church membership more like an enlistment (Baptist), or more like a citizenship (Presbyterian)? In the Presbyterian understanding of the covenants, God visibly included children of believers in the church
explicitly in Gen.17, although we would see the reality going back to Gen.4. And he has not (so far as Presbyterians know it) put them out--preemptively disciplined them--and therefore they remain in, as minor citizens.
So as your post indicates (where I
bolded your statements), according to the Baptist commitments you've grown up with, you believe that the best way to
not-quite-guarantee-but-come-close-to a pure earthly expression of believers in union with one another in Christ, is to insist on 100% verbally expressed testimony to a preexisting spiritual faith union with Christ.
The Presbyterian (at least, the non-establishmentarian kind) will also insist on not-including under the church's constitution (and discipline) anyone of-age to make his own decisions, who does not profess the true religion. But I must continue to challenge the claim that the credo-only practice is inherently superior to the (confessional) paedobaptist practice for the purpose of reflecting spiritual reality. If the Presbyterian "errs" on the side of
inclusivity, he at least is able to support his practice by an appeal to the prescribed "inclusivity" of the historic (OT) church, leaving aside the disputed NT data. If the Baptist "errs" on the side of
exclusivity, he must admit his practice leaves out of the picture a fair number of God's forever-children (minors who are actually being disciplined in the faith, unless their spiritual formation is grossly neglected), while including an equal number of of false-sons in the portrayal.