I hold to Reformed Covenantalism, sometimes called "1689 Federalism," which is the covenant theology of the 1689 London Baptist Confession. This puts me in basic agreement with the Westminster Standards on the broad structure of covenant theology (covenant of works, covenant of grace), while differing at specific points related to the church, baptism, and the Mosaic covenant.

The Covenant of Redemption (the pactum salutis) is the eternal, intra-Trinitarian agreement in which the Father appointed the Son to be the Mediator and Redeemer of the elect, and the Son willingly undertook that office. This covenant is the eternal foundation of all of redemptive history. When Jesus speaks of those "given to him" by the Father (John 6:37–39; 17:6), this is the pactum in view, a definite, unconditional arrangement made before time began.

The Covenant of Works is the arrangement under which God placed Adam as federal head of all humanity in the garden. Obedience would bring life; disobedience would bring death. Adam failed, and in his failure he brought the whole race under condemnation (Rom. 5:12–19). The significance of this is immense: it means that sin comes to us by representation, not merely by imitation, and it means that righteousness comes to us by representation too, through the obedience of the Second Adam, Jesus Christ. Without a covenant of works, there is no basis for understanding how the obedience of one man can be credited to many.

The Covenant of Grace is God's single redemptive covenant with His elect, promised in Genesis 3:15 and progressively revealed and administered through the Abrahamic, Mosaic, Davidic, and New Covenants. There is one people of God, one promise, one Mediator, but the administrations change as redemption unfolds. This is where the Baptist and paedobaptist Reformed traditions diverge.

The Mosaic Covenant and the New Covenant: As a Reformed Baptist, I hold that the Mosaic Covenant was a national covenant with Israel, a distinct administration of the covenant of grace that also carried a republication of the covenant of works for typological purposes. It is not simply identical to the covenant of grace. The New Covenant, established in Christ's blood (Luke 22:20), is the final and fullest administration, and it is explicitly a covenant with those who "know the Lord" and have the law written on their hearts (Jer. 31:31–34). Membership in the New Covenant community is therefore not defined by physical descent or national identity but by regeneration and faith. This is why baptism, as the sign of New Covenant membership, is appropriately given to those who confess faith, not to infants on the basis of parental covenant standing.

I distinguish this from dispensationalism, which treats the covenants as separate divine programs with separate peoples, and from New Covenant Theology, which sometimes undervalues the continuity and unity of the covenant of grace. Reformed Covenantalism holds both continuity and discontinuity in careful tension, letting the New Testament interpret the Old as it develops, fulfills, and in some respects transcends it.

“And I will put enmity between you and the woman, and between your seed and her seed; He shall bruise you on the head, and you shall bruise Him on the heel.”

Genesis 3:15, the Protoevangelium

The first announcement of the covenant of grace, immediately after the fall. The entire Old Testament is the unfolding of this promise.

“For as through the one man’s disobedience the many were constituted sinners, so also through the obedience of the One the many will be constituted righteous.”

Romans 5:19

The Adam-Christ typology is the heartbeat of federal theology. Two men, two covenants, two outcomes.

“Behold, days are coming,” declares Yahweh, “when I will make a new covenant with the house of Israel and with the house of Judah… I will put My law within them and on their heart I will write it; and I will be their God, and they shall be My people. They will not teach again, each man his neighbor and each man his brother, saying, ‘Know Yahweh,’ for they will all know Me, from the least of them to the greatest of them,” declares Yahweh.”

Jeremiah 31:31–34

The New Covenant differs from the Mosaic in that all its members know the Lord. There are no unregenerate covenant members; this is the Baptist distinctive in covenant theology.

The 1689 LBC treats covenant theology throughout, but especially:

  • Chapter 7: Of God's Covenant, the covenant of works and covenant of grace
  • Chapter 8: Of Christ the Mediator, grounded in the eternal pactum
  • Chapter 19: Of the Law of God, distinguishing the moral law's perpetuity from the civil and ceremonial law's fulfillment
  • Pascal Denault, The Distinctiveness of Baptist Covenant Theology

    The best single introduction to 1689 Federalism. Clear, concise, and historically rooted.

  • Recovering a Covenantal Heritage by ed. Richard Barcellos

    A scholarly collection defending Reformed Baptist covenant theology from multiple angles.

  • God of Promise: Introducing Covenant Theology by Michael Horton

    A readable introduction from a paedobaptist perspective; still excellent for the broader structure.

  • Sacred Bond: Covenant Theology Explored by Michael Brown and Zach Keele