Rather, you should follow My example and do as I have done.
John, the evangelist, recounts that this foot washing occurred during the meal, with Jesus rising from the table specifically for this act (John 13:2, 4). But what transpires at the very beginning, when Jesus had yet to rise to perform the washing? The answer lies in the Gospel of Luke, which indicates a contention among the Apostles about who among them should be regarded as the greatest. This contention likely did not arise from their seating arrangements, as they had dined together on prior occasions, where they would have taken their places according to their customary order. Furthermore, they were not likely arguing about their rank in the Kingdom of the Messiah, as this matter had already been clarified by Jesus. It is plausible that the disagreement stemmed from the question of who would take on the role of the servant that evening, responsible for washing the dusty feet of the guests. This is reinforced by Luke’s subsequent words, as he records Jesus saying to the apostles, “Who is greater, the one who reclines at the table, or the one who serves? But I am among you as one who serves.” These words were undoubtedly spoken after Jesus had washed the apostles' feet, with the washing itself occurring in the wake of their dispute.
Regardless of the nature of the argument, it is evident that the Apostles were already contentious at the beginning of the evening. Such a disagreement could not have emerged after Jesus' demonstration of humility, as His example would have rendered such quarreling inappropriate. Moreover, this dispute could not have happened after the institution of the sacrament of the Eucharist, for this sacrament established equality among all the Apostles. Given that the beginning of the Supper was consumed by the Apostles' contentiousness, followed by the washing of the feet, and subsequently by the teaching on humility and the denunciation of Judas, it is clear that the institution of the Sacrament did not occur at the very start of the Supper prior to the foot washing.
This leads to the conclusion that Christ could only offer His Body and Blood, under the guise of bread and wine, with the words, “This do in remembrance of Me,” to those who believed in Him, to those who would establish Divine love and goodness on earth and unite all who enter into this kingdom through the administration of this sacrament. Judas, having conspired to betray his Master, did not belong to this kingdom and thus was not fit to be present at the institution of this sacrament. The sequence of events at the Last Supper is as follows: the Apostles' argument, the washing of the feet, Jesus’ teaching regarding their dispute and the example of humility He displayed, the denunciation of Judas, his departure from the Supper, the institution of the sacrament, and the farewell discourse. Consequently, it is certain that Judas was absent from the institution of the sacrament.