Origin of the Eucharist and the possible intervention of other factors. One key consideration in this is the problem of the Jewish prohibition of drinking blood (see below). Professor Robert J. Daly, S.J., argues that Jesus did indeed institute the Eucharist, though it took generations and centuries of guidance from the Holy Spirit for the Eucharist to reach its current form. "What Jesus did at the Last Supper is obviously at least the generative moment of the institution of the Eucharist." But it was not the Eucharist as we know it. "The Eucharist that Christians now celebrate is what the Church, under the guidance
Eucharist mainly of readings from scripture (the Bible) and a homily preached by a priest or deacon and is essentially distinct and separate from the Sacrament of the Eucharist, which comprises the entirety of the Liturgy of the Eucharist, so the Eucharist itself is only about one half of the Mass. (It is also possible and permissible in the Latin Rite for a priest to consecrate and distribute the Eucharist outside the ritual structure of the Mass—such an event is often called a communion service—but it is much more common to celebrate a full Mass.) Among the many other terms used