Frequently asked questions and answers:

Question 221: Was Judas at the institution of Elohiym’s Supper?

Answer:

It is doubtful whether Judas was present at the institution of Elohiym's Supper. He was present at the foot-washing and at the early part of the feast, but he could not remain after Moshiach spoke of His imminent betrayal and showed His knowledge of the identity of the guilty man. Then Judas went out, but we do not know whether the breaking of the bread and the blessing of the cup had already taken place: from Luke's narrative it would appear that they had; Matthew and Mark however, mention the ceremony after the conversation about the betrayal, which would imply that Judas was not present at the ceremony. The Evangelists were concerned more about the spiritual significance of the events of that agitating night than about presenting those events in consecutive order.