The four cups, in the order Scripture places them:

1. The Cup of Blessing — what Christ gives his disciples at the Last Supper, sealed with his words "this is my blood of the covenant" ([•]; [•], ch. 29).
2. The Cup of Wrath — what Christ asks the Father to remove in Gethsemane, the cup of God's judgment against covenant rebellion that the prophets had been pouring for centuries ([•]; [•]).
3. The Cup of Reservation — what Christ vows not to drink "until that day when I drink it new in the kingdom of God" (Mark 14:25; [•]).
4. The Cup of Consummation — what Christ will drink with his Bride at the marriage supper of the Lamb (Rev 19:9; [•]).

These are four distinct cups, not one cup at four moments. Reformed exegesis has always insisted on the distinction. [•] separates the cup of wrath from the cup of blessing on theological grounds; [•] grounds the same distinction in his treatment of the atonement; [•] sets the four-fold pattern inside a redemptive-historical map.

Why the framework matters

The four-fold cup pattern is theologically load-bearing in a way that single-cup readings are not. If the Eucharistic cup, the cup of wrath, and the kingdom cup are collapsed into a single object, three errors immediately follow:

1. Sacramental confusion. The Lord's Supper becomes either an empty memorial (Zwinglian reduction) or a re-presentation of Christ's wrath-bearing sacrifice (Roman-Catholic conflation). The Reformed reading — sacramental presence by the Spirit, not sacrificial repetition — requires the cup of blessing to be liturgically and theologically distinct from the cup of wrath drunk on the cross. [•] sets this out at length.

2. Eschatological flattening. If the cup of consummation is the same as the cup of blessing, there is no "not yet" to the believer's hope. [•] argues that the cup Jesus reserves at Mark 14:25 is the eschatological cup — drunk new with us in the kingdom — and is categorically different from the cup his Church drinks every Lord's Day in the meantime.

3. Atonement obscurity. If the cup of wrath is not held distinct from the cup of blessing, the doctrine of penal substitution loses its sharp edge. [•] insists that what Christ drinks in Gethsemane is precisely what we would have drunk apart from him; what he gives at the table is the seal of that finished work, not a continuing offering of it.

The Reformed reading, properly stated, holds all four cups in their canonical and theological distinction.

What the framework is not

The four cups are not built on rabbinic or post-apostolic Jewish liturgical sources. The Reformed exegete does not need to retroject any later liturgical structure into the New Testament accounts to see the four-fold pattern — it emerges directly from the canonical text and from Reformed-confessional treatment of the cross.

The framework is also not a private innovation. [•] already holds the cup of wrath and the cup of blessing apart in his commentary on Matthew 26. [•], [•], [•], [•], [•], [•], and [•] each in their own register treat the cup-of-wrath / cup-of-blessing distinction as load-bearing for the atonement. What this site adds is the visual scaffolding — four cups, named — and the inclusion of Christ's eschatological vow as the third cup, which the Reformed tradition has always honored but rarely numbered.

The four cups in Reformed-confessional perspective

Cup	Scripture anchor	Reformed locus	What it secures
1. Blessing	Mark 14:23–24; 1 Cor 10:16; 11:25	[•] ch. 29; [•] Q. 75–82; [•] art. 35	The visible word of grace; sealed in the new covenant
2. Wrath	Mark 14:36; Ps 75:8; Isa 51:17, 22; Jer 25:15–16	[•]; [•]; [•]	The penal substitution of Christ for the elect
3. Reservation	Mark 14:25	[•]; [•]	The "not yet" of redemption — Christ's vow
4. Consummation	Rev 19:6–9	[•]; [•]	The marriage supper of the Lamb

The columns track. The Reformed confessions and standard works each treat the cup of blessing under sacramental theology, the cup of wrath under the atonement, the cup of reservation under the doctrine of last things, and the cup of consummation under eschatology. The four-fold cup framework is the Reformed system of theology read through a single image.

A pastoral aim

What this longread will argue, chapter by chapter, is that each of the four cups is a doctrine the Reformed-confessional tradition has been teaching for five centuries — and that holding them together as four cups makes the doctrine of the cross, the Lord's Supper, and the believer's eschatological hope land more clearly than treating them in isolation.

The remaining five chapters proceed in canonical order:

• Chapter 2 treats the Cup of Blessing — the Last Supper as covenant-renewal meal, the Reformed sacramental tradition from Calvin to Bavinck, and the technical title kos shel berakhah (kept only as a Greek-NT lexical observation in [•]).
• Chapter 3 treats the Cup of Wrath — Gethsemane and the prophets, with Calvin, Owen, Edwards, and Macleod as our principal Reformed witnesses.
• Chapter 4 treats the Cross — tetelestai, oxos, and hyssop, working through Carson, Köstenberger, Stott, Sproul, and Owen.
• Chapter 5 engages dissenting voices within and outside the Reformed tradition — Arminian objections to particular redemption, Lutheran sacramental disagreements, the "limited atonement" question, and the textual problem at Luke 22:19b–20.
• Chapter 6 synthesizes the framework as a Reformed-confessional teaching device.

Continue to Chapter 2 — The Cup of Blessing for the Reformed sacramental theology that anchors the Eucharistic cup, drawing on Calvin Institutes 4.17, Westminster Confession 29, and the Heidelberg Catechism on the Lord's Supper.