The four-fold framework, stated

Cup	When	Where	What it is	Status
1. Cup of Blessing	Last Supper, after the meal	The upper room	The visible word of the new covenant, sealed in Christ's blood (1 Cor 10:16; [•] ch. 29)	Drunk by Christ and disciples; instituted as sign and seal
2. Cup of Wrath	Gethsemane → Cross	Garden, then Golgotha	The cup of God's wrath against covenant rebellion (Ps 75:8; Isa 51:17, 22; Jer 25:15–16)	Drunk by Christ alone, in the place of the elect
3. Cup of Reservation	"Until that day…"	Held in heaven	The cup Christ vowed not to drink until the kingdom (Mark 14:25)	Reserved for the eschaton
4. Cup of Consummation	The Marriage Supper	The new heavens and new earth	The cup Christ will drink new with his Bride (Rev 19:9)	Awaited with hope

The four cups are not the same cup at four moments. They are four distinct cups in a single redemptive economy. The Reformed exegete keeps them distinct. The cup of blessing seals; the cup of wrath atones; the cup of reservation holds open the eschatological promise; the cup of consummation will fulfill it.

What this position concedes

Stated cleanly, with no contortion:

1. The Arminian objection raises real pastoral questions about the free offer of the gospel and assurance — and the Reformed tradition has always taken these seriously. [•] recovers this from the Marrow Controversy.
2. The "tetelestai = paid in full receipt" sermon illustration is misleading and should be retired.
3. The New Perspective on Paul has a real ethnic insight: Paul's polemic against works of the law does include boundary-markers as well as moral works.
4. In-house Reformed disputes are real — federal vs. classical covenant theology, language about the covenant of redemption, the precise mode of Christ's spiritual presence at the Supper.

What this position holds

Equally cleanly:

1. The Lord's Supper is the visible word of the new covenant — sign and seal, not bare memorial nor sacrificial repetition. [•], [•], [•], [•] all concur.
2. The cup in Gethsemane is the prophetic cup of divine wrath, not generic suffering. [•], [•], [•], [•], [•] concur.
3. The atonement is penal substitution, definite in its extent. The Servant drinks the cup the prophets foretold for the wicked — for the elect, not generically. [•], [•], [•], [•] concur.
4. The cross is the consummation of the Passover typology. [•] already saw it in the second century; [•] develops it under Reformed biblical theology.
5. Tetelestai announces the abiding state of finished redemptive accomplishment. The verb tense alone refuses every form of synergistic righteousness. [•] systematizes the principle.
6. The kingdom-cup awaits the Bridegroom's return. The Supper between cups ([•]) is the Church's posture: looking back, looking forward, lifting hearts.

A Reformed-confessional summary

The position is recognizable in any Reformed confession, though no confession states it under "four cups":

• The Westminster Shorter Catechism Q. 25 — Christ executes the office of a priest "in his once offering up of himself a sacrifice to satisfy divine justice." That sacrifice is the cup of wrath drunk on the cross.
• The Heidelberg Catechism Q. 80 — the Lord's Supper testifies "that we have full pardon of all sin by the only sacrifice of Jesus Christ, which he himself has once accomplished on the cross." The Cup of Blessing seals that pardon.
• The Belgic Confession art. 35 — "Christ has appointed an earthly and visible bread as the sacrament of his body, and wine as the sacrament of his blood." The Cup of Blessing is the appointed sign and seal.
• The Westminster Confession XXIX.1 — the sacrament is "to be observed in his Church, unto the end of the world." Until he drinks the Cup of Consummation with us.
• The Canons of Dort Second Head — Christ's death "is of infinite worth and value, abundantly sufficient to expiate the sins of the whole world." Sufficient for all, efficient for the elect — the Cup of Wrath drunk in their place.

The four-fold cup framework is a teaching device — a pedagogically useful way of holding together what the Reformed confessions teach in their own register. It is not a doctrinal innovation. It clarifies, it does not invent.

A pastoral word for the believer

If you have read this far on a Saturday afternoon, you are likely a Christian who came hoping the framework would deepen rather than disturb your faith. It should have done both, in the right way. Some specific encouragements.

For the believer who is afraid of dying. The cup of wrath has been drunk to the dregs. Already. Without your help. There is none left for those who are in Christ. [•] writes that the believer's fear at the hour of death is not a fear of coming judgment but a fear of unfamiliar glory. What awaits is the Father whose Son has already drunk what would have been ours. The cup that meets you on the other side is the kingdom cup, not the wrath cup. He has promised to drink it with you.

For the believer who is weary. The verb is τετέλεσται. It stands finished. You do not finish it. You do not maintain it. You do not contribute to it. You eat the bread and drink the cup as one who is given the body and blood of Another by faith. [•] on the sursum corda: lift up your heart. The Christ who finished the work on Friday afternoon is risen and seated at the right hand of the Father, and he summons your faith to the table where his Spirit applies what his cross accomplished. Eat. Drink. He has done it. [•] commends precisely this Reformed pastoral application.

For the believer in spiritual dryness. The Cup of Blessing is not a memorial of an absent friend. It is the appointed sign and seal of the present Christ, given to weak faith for the strengthening of weak faith. [•] reads the sacrament as a means of grace by which the Spirit nourishes the soul; [•] recovers the same insight pastorally for our day. Take, drink, and be assured.

For the believer in conflict with another believer. Paul's argument in 1 Corinthians 10–11 turns on the cup as a participation. To eat and drink in faith is to be drawn into a body that does not permit its members to despise one another. The cup of blessing has ecclesiological consequences. If you are estranged from another believer, do not approach the cup without seeking peace (Matt 5:23–24). [•] ties communion with Christ to communion with the saints.

A pastoral word for the unbeliever

If you have read this far without believing it, the question this site has been pressing toward is now in your hand. Whatever you make of the historical evidence, the theological claim is unmistakable: a cup of judgment was poured for human covenant rebellion. That cup was drunk by Christ. There remains a cup of consummation for those who are his.

The Reformed-confessional posture toward you, the unbelieving reader, is neither a salesman's anxious pitch nor an academic's neutral shrug. It is the gospel's own posture: kindness, frankness, and an open hand. You are not a project to be closed. You are a soul made by God for the marriage supper, who at present stands outside the room. The kindness is real. So is the frankness.

The frankness. The cup of wrath is real. The prophets pour it for centuries. Christ took it as the articular, definite the cup in Gethsemane. [•] argued that the wrath of God against sin is one of the surest doctrines of Scripture; [•] grounded it in the holiness of God; [•] recovered it for our generation. To imagine that the cup of wrath does not exist because it has been poured for sin is to imagine that sin does not exist — and that imagination will not survive contact with your own conscience or with your own death.

The kindness. It has been drunk. By a substitute. The substitute is the eternal Son of God incarnate. The substitute is offered to you as a gift, freely, on no condition you must meet first. The only door into the gift is faith — itself given by the Spirit (Eph 2:8–9). The cup that meets you when you call on Christ is not the cup of wrath. It is the cup of blessing. He gives it to you. And when you sit at his table this side of glory, the same cup that signs his blood-bought pardon is the down-payment on the cup of consummation he has reserved for the day he comes for his Bride.

Where to go from here

• The intertextuality map at /interactives/intertextuality-map shows you the prophetic cup-of-wrath texts as a connected vocabulary, so you can see the cup of Gethsemane in its full canonical setting.
• The manuscript viewer at /interactives/manuscript-viewer lets you see the actual papyrus and uncial witnesses for the disputed Lukan verses, so you can read the manuscript evidence with your own eyes.
• The Greek/Hebrew explorer at /interactives/greek-hebrew-explorer gives you the lexical entries for tetelestai, oxos, hyssōpos, kos, ḥemah, tar'elah, and ezov — every keyword load-bearing in the Reformed argument.
• The timeline at /interactives/timeline plots Reformed scholarship on the cross from Calvin to today.
• The study materials at /study give you a group discussion guide, a personal devotional, a sermon outline, a family worship version, and a Lord's Supper resource — so this longread does not stay on the screen.