Forgive me jumping in mid-flow, I’m not a regular but I do have an interest (don’t we all!) in Covenant Theology. I’m a Baptist and don’t subscribe to NCT, but rather to historic Baptist CT. I’d like to respond to JEdwards post above and in passing thank him for his gracious tone throughout. I believe it is crucial to explore this issue and hope to do so without hostility. My post is long as I’ve quoted the original so I won’t ramble on any more.

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Second, it is best to examine the Scripture itself and interpret it with other Scripture. Let’s examine them a little closer (Just a reminder: Covenant Theology teaches three aspects of the Kingdom: (1) the Inauguration—death and resurrection of Christ, (2) the Continuation—time between Christ first coming and His Second Coming, and (3) the Consummation—His 2nd coming. I hope this very brief explanation helps in everyone's understanding below.).

I’m not overly familiar with this division of the Kingdom into three aspects, but I don’t think it causes many difficulties other than to omit consideration of OT saints and to make Consummation of the New Covenant synonymous with what exactly? The Lord’s Second Coming, Judgement, Glorification ?
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• New Covenant: In its original framework, Jeremiah’s prophecy explained about a time when the exiled communities of Israel/Judah would be restored to the promised land and would obtain the blessings of God’s covenant in all its fullness. Jeremiah’s offer of a “new (renewed is a valid and a better translation of both the Hebrew and Greek) covenant” was an offer of forgiveness for transgressions committed under the covenant as it was administered under Moses (Heb 9:15) and to the restoration of God’s favor under the same covenant (Heb 8:12; Jer 31:34).

There is undoubtedly this content in Jeremiah –the most immediate sense of the prophecy –but there is still a conditional aspect that means words like “in all its fullness” can’t be used carelessly. (Jer 31:30)
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• laws into their mind: Inward appropriation of the law is not exclusive to the covenant in Christ or only the New Testament (Deut 6:4-9; 30:1-6, 14; Psa 37:31; 40:8; 119:11). This again reveals: (1) the continuity of the covenant from Genesis forward, and (2) adds emphasis that the New Covenant is a renewal and not a “new” Covenant in the way some have understood the term (new). In Jeremiah’s day, as in the 1st century, many Jews had reduced the Old Covenant to externalities, but Jesus and His apostles said “No” (Matt 5:17-19). When Christ returns, the New Covenant will bring wholehearted obedience to God’s will. This process began with the first coming of Christ, but will not be complete till the Second Coming.

Well observed. And crucial to a right understanding of Covenant Theology. The Baptist CT contention here would be that the Old Covenant was never salvific; and external observances never effectual. Salvation was always and only by faith in the blood of the Glorious Promised Redeemer. Only those in the OT who had their eyes opened by the Holy Spirit to trust in Christ’s redeeming blood would be saved. They would enter into the everlasting covenant of Grace. Many of these would have been Jews, most of them members of the symbolic Old Covenant (although many before Sinai and many of other nations and even priesthoods –Melchisedec, Sareptan Widow). But yes, those –and only those- with the laws written on their minds would be redeemed.

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I will be to them a God, and they shall be to me a people This is again the Old Covenant formula (Lev 26:12). Again, we see the New Covenant not abolishing the Old Covenant, but fulfilling it.
Rather this is simply a covenant formula –it is the statement of a covenant.

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• Know the Lord: for all shall know me, from the least to the greatest: This exhortation once again summarizes the obligation of the law (Jer 22:16-17; 1 Chron 28:9). Under the New Covenant God promises to give His people a new heart to know Him (Jer 24:7). Needless to say, although Christ has inaugurated the New Covenant in His death and resurrection, not all who partake in the New Covenant (external church) know the Lord in a saving way. Moreover, not all who will receive a new heart have it yet--salvation is yet to come for many. In addition, teaching is still going on in the Church today, though we have the Holy Spirit (John 16:13, etc.). We only know in part now (1 Cor 13:10). Jeremiah’s words will not be entirely fulfilled until Christ returns. Only when the Church is composed “only” of believers will the finality of this promise be fulfilled. The “inauguration” of the New Covenant has brought us a step closer to this destiny. Theologically, this is called “the now, but not yet,” and can be read in any good systematic on Covenant Theology.

This paragraph introduces the idea that one can participate in the New Covenant yet not in a saving way. It was certainly true of the Old Covenant that one could participate in all the externals of that Covenant –circumcision, Levitical worship, Jewish civil and ceremonial law and so on without regeneration. But the Baptist contention is that the Old Covenant was a picture –a type –a teaching symbol; and what it was a teaching symbol of is the internal reality of the New Covenant. Presbyterian CT errs in the failure to differentiate the type from the reality.

Let me ask what OT saints were saved by? Which “covenant” transaction saved them? It is the Baptist view (and the view of a famous paedobaptist as well –John Owen See Works Vol XXII on Hebrews 8.6) –that the New Covenant operated throughout and before the Old Covenant interlude as a Promise. It is called the new covenant because in time Christ fulfilled the Promise, thereby enacting it as a Covenant proper, but its effects were salvific even while promissory.

To be in the New Covenant, one has to be regenerated. That is the antitype of the OT “separated people”.


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. How does this effect baptism?
Not all paedobaptists would hold this Presbyterian CT as I said above (John Owen) but since the Baptist use of the verse is being objected to, I’ll answer as I can.
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Baptists attempt to say we should “only” baptize professors based upon these verses. They contend the New Covenant is only for professing believers and not non-professing infants. However, as demonstrated above, the fullness of these verses has not occurred yet, and thus a Baptist could never baptize a single soul until the Second Coming. Why? Because Jer 31:34 states, “And they shall teach no more every man his neighbor, and every man his brother, saying, Know the LORD," but we still evangelize and have missions, thus there is still a future aspect to this—it is not yet completed. Why? Because Jer 31:34 states, “for they shall all know me, from the least of them unto the greatest of them, saith the LORD,” but many still do not know Him. In addition, they can’t prove that a single soul savingly “knows” the Lord. They only have professors, but the verses in Jer 18/Heb 8 both speak of a “definite” saving knowledge—not just a profession. Baptists look at these verses as "already" fully fulfilled (thinking in part it does away with the visible/invisible church distinction), but proper exegesis does not support their line of reasoning. I look forward to a meaningful Baptist hermeneutic on the future aspect these verses speak about, but at present I have only seen some faulty interpretations of the passages...

However, in looking at these verses from a true Covenant perspective this error will not occur. There is a continuity in the covenants. Children were part of the covenant in the O.T. and they are part of it in the N.T. Paedos do not baptize based on Jer 31 being completed, for it isn't. Jer 31 is not a valid defense for the credo. Scripture bears out that there is a visible/invisible church distinction as previously discussed. Covenant continuity is where paedos and credos part company, but we can still be friends."

This isn’t the only verse we Baptists take our credo position from but we certainly do contend the New Covenant is only for believers. Within the exegesis of prophetic statements let me question the argument just made.
Jer 31:34 states, “And they shall teach no more every man his neighbor, and every man his brother, saying, Know the LORD,"
It is crucial to determine who “they” are in this verse. If “they” are the members of the New Covenant –the regenerate, as we Baptists contend, then we will certainly obey the great commission and evangelise the lost, but the regenerate have no longer need of someone to lead them to salvation. “They” are already there! –they know Him. I am not saying we no longer teach, edify, sermonise and magnify the Lord –(I believe we will do this even in Glory) –but we will no longer teach believers as if they are unbelievers.
And of course- missions and evangelism will continue –outreach to those outside the New Covenant.
Jer 31:34 states, “for they shall all know me, from the least of them unto the greatest of them, saith the LORD,” Again the Baptist position (alone) makes perfect sense of this. All in the New Covenant do know the Lord. Now there is an obvious difference between saving knowledge and Systematic Theology final exams, but in the case of every regenerate person the Lord Jesus Christ is known as Saviour.

“Fully fulfilled” is a tautology. While it’s true that not everyone who will be saved is saved now; (there are elect who are as yet unregenerate, or even unborn) it is entirely logical, Biblical and theologically sound that those who are saved are fully saved.

Rather than seeing the “Continuity of the Covenants” on the Presbyterian model, the Baptist CT sees the Everlasting Covenant of Grace as active throughout creation from the Fall, with the teaching interlude of the Old Covenant (Mosaic Covenant) interposed as a type of the church prior to the Coming of the Promised Messiah. Salvation was by faith in the God’s Promise of the (New) Covenant in the blood of the Redeemer to come, and thenceafter by the same faith as a realised historical (New) Covenant.

Can Baptists infallibly tell the regenerate from the unregenerate? Of course not. But Biblical teaching, credible profession, testimony and evidence of change of life; and church discipline properly applied make cases of error extremely rare in Reformed Baptist churches worthy of the name.

I would accept the notion of Visible/Invisible church only inasfar as it describes human error and deception. I think to set up an ecclesiology with this as a mainstay is an error of Covenantal thinking carried over from the OT nation-state of Israel as I’ve indicated above.