So, I just read chapter 6 in his new book titled "the cups".
Here are a couple quotes - "But they neglect to drink the cup of wine prescribed to accompany the hymn, the fourth cup. This is a glaring omission."
"Even twenty centuries later, the omission remains a scandal to readers who have lovingly observed the seder throughout their lives"
"Historians believe the four cups of wine were added later to heighten the banquets sense of festivity", because it was not proscribed in the torah.
"Rabban gamaliel does not number wine among the three essenetial elements of the passover, but the mishnah nonetheless carefully prescribes the dispensation of the drinks."
Here I am paraphrasing. The first course/cup is kiddush, the second course/cup is little hallel(the questions and answer play), the third cup was the lamb and unleavened bread course/cup of blessing which according to him is the last supper. And, the fourth cup is the singing of a hymn and drinking the fourth cup of consummation.
Hahn says jesus does drink a fourth cup of wine, although it was not from a cup nor wine. And, from memory, it only seems to touch his tongue. It was vinegar implemented from a hyssop branch which is the same hyssop branch used to sprinkle blood on the israelites called in the seder the cup of consummation.
However, the fact that the apostles, who were Jєωs, did not raise a concern about not consuming a fourth cup after singing a hymn ought to raise an eyebrow, that perhaps the 2nd century invention was not accurate with what was the passover of old. Basically, hahn is giving the 2nd century Jєωs credibility to authentically interpret the old practices. When, we know that the Jєωs are a deceitful antichrist race who will do anything to fool the goyim(in this case christians).
I guess my gripe is that hahn is at best I think wasting his time here, but more likely offering a defense of post christian Jєωιѕн practice or "covenant". Because the best way you can look at this is that maybe Jєωs would read this and be converted to the church. However, at the same time, it lends a type of credibility to what the Jєωs are currently doing, because this seder practice is a post Christian Jєωιѕн invention of the 2nd century. And, we know how much Jєωs like to be called our older brothers of a still valid covenant(hahns favorite word). And, it is conceivable that like everything else the Jєωs do, they do it as a reaction to the church. It is like Christ said, catholics worship what they know, non catholics worship what they do not know(Jєωs especially). And, like the canary in the coal mine, Jєωs do the same against us. So, it is conceivable that the Jєωs structured this seder in part as a response to how they read or understand the proceedings of the new testament and the life of Christ. But, this does not erase the fact that they are committing sacrilege, and are guilty of superstition. It becomes a type of hypersuperstition, because they potentially read or understand it in light of Christ, whom they knowingly deny. And, hahn resurrects it. The best way to think of Jєωs is in a negative light. That does not mean that we be uncharitable to Jєωs. NO. But, we must be wary of them like christ taught. And, our charity towards them must only flow to them through an ordered structure of cooperation from church and state ordained by God. And, I do not think it is ordered so rightly to shine a christian light on their 4 seder cups like this.
I could be over reacting. But, I prefer it when clerics lead the way in theology, not a NO married convert with a lot of protestant baggage.