When Jesus drinks the cup at passover, establishing the new covenant in his blood, he’s actually drinking the third cup of wine at the Passover meal.
There were four cups of wine traditionally drunk. Each cup mirroring one of the aspects of the four fold promise of redemption set forth in Exodus 6:6-7

That verse says
1 I will bring you out.
2 I will rid you of their bondage.
3 I will redeem you.
4 I will take you for my people and I will be your God.

When Jesus gets to the fourth cup, he says ‘no more wine for me.’

Mark 12:25 Truly I tell you, I will no longer drink of the fruit of the vine until that day when I drink it new in the kingdom of God.” 26 After singing a hymn, they went out to the Mount of Olives.

William Lane points out that when you link the verse 24 Jesus drinking the new covenant cup of redemption (cup number three) and the vow of abstinence in place of cup number four it makes up a solemn pledge… that the fourth cup will be extended and the unfinished meal will be completed in the consummation - when the Messiah eats with redeemed sinners in the kingdom of God.