“This cup... is the new covenant in my blood”
This is My body, given for you; do this in remembrance of Me… This cup is the new covenant in My blood, which is poured out for you. (Luke 22:14–20 BSB)
What it sounds like today
Ritual words heard so often their strangeness is invisible.
The cultural key
The meal is a Passover, every element already scripted with meaning: unleavened 'bread of affliction,' cups of wine marking Exodus promises, the retelling of rescue from slavery. Into that script Jesus splices himself: 'blood of the covenant' quotes Exodus 24:8, where Moses splashed sacrificial blood on the people at Sinai to seal the covenant. The betrayer is identified by the shared dish: table intimacy weaponized, as Psalm 41:9 laments ('who ate my bread has lifted his heel'). And 'when they had sung a hymn' (v. 30) means the closing Hallel, Psalms 115–118, so they walked to Gethsemane singing 'the stone that the builders rejected…' Luke's account is the fullest Passover: two cups (the Passover seder used four; Luke shows the cup before and after supper), the explicit phrase 'new covenant,' making the Jeremiah 31 promise unmistakable, and the command 'do this in remembrance of me,' zikkaron language, the Passover category of remembering that makes the past present.
Recovered meaning
Jesus rewrites the nation's founding meal around his own death: a new exodus, a new covenant sealed in blood, his own. The oldest liturgy Israel had, with a new referent seated at the table.