Shared ground
Luke presents the meal as Jesus’ deliberate, final Passover with “the twelve,” set under the shadow of his coming suffering (vv. 14–16). The meal is not only a farewell; it is tied to the arrival and completion of God’s kingdom (vv. 16, 18).
Jesus gives bread and a cup with interpretive words: the bread relates to his body “given for you,” and the cup is “the new covenant” in his blood “poured out for you” (vv. 19–20). The text explicitly frames these actions as a repeated remembrance (v. 19).
The passage also holds together two realities: Jesus’ path is “determined,” yet the betrayer is morally accountable and warned (vv. 21–22). Finally, Luke links table fellowship with leadership: Jesus rejects status rivalry and defines greatness by service, while also promising future honor and participation in his kingdom (vv. 24–30).
Where interpretation differs (only where needed)
1) “Until it is fulfilled / until the kingdom comes” (vv. 16, 18). Some read this mainly as pointing to a future end-time banquet when God’s reign is fully revealed. Others read it as including nearer events (Jesus’ death, resurrection, and the kingdom’s launch), with “fulfilled” reaching forward but already beginning.
2) The cups (vv. 17–18, 20). Some think Luke describes two distinct cup moments (one early, one “after supper”). Others think Luke is summarizing the same cup tradition in two steps, highlighting different meanings.
3) “This is my body… This cup is the new covenant…” (vv. 19–20). All agree Jesus attaches covenant meaning to the meal. Disagreement centers on how closely the bread and cup are identified with Jesus himself: some emphasize symbolic memorial language, while others think the wording signals a stronger, real participation in what Jesus gives through the meal.
4) “Judging the twelve tribes of Israel” (v. 30). Some take this as a future, concrete role for the apostles in God’s final judgment and restoration of Israel. Others see it as a figurative way of describing apostolic authority in the renewed people of God (for example, through their foundational witness and teaching).
Why the disagreement exists
Luke’s wording is compact and layered: he combines Passover, imminent suffering, covenant language, kingdom timing, and future enthronement promises in one scene. That density leaves room for different ways of sequencing events (present vs. future kingdom), and different ways of reading meal language (symbolic vs. stronger participation language). Also, Luke’s narrative style sometimes repeats or rearranges material for emphasis, which affects how readers relate the “cup” statements.
What this passage clearly contributes
It anchors Jesus’ death within Passover and covenant language: his body is “given,” his blood “poured out,” and this constitutes a “new covenant” (vv. 19–20). It ties the meal to memory (“Do this in memory of me”) and to hope (“until the kingdom…”) without fully spelling out a timeline (vv. 16–19). It portrays betrayal not as a surprise to God’s plan yet still blameworthy (vv. 21–22). And it defines community leadership in contrast to coercive honor-seeking: in Jesus’ circle, the “greater” is the one who serves, modeled by Jesus himself at the table (vv. 24–27), while still affirming a coming kingdom role for those who remained with him (vv. 28–30).