This text places the Eucharist in the universal context of world religions and shows how the Eucharist is God's response to the universal human quest for the perfect sacrifice of expiation, thanksgiving, and communion. It not only discusses the explicit Eucharistic texts of the New Testament but also shows the role and meaning of the Eucharist within each Gospel, within the theology of Paul, the Letter to the Hebrews, and the Book of Revelation.It cites forgotten texts and recovers surprising insights from the Fathers that disclose the link between the Eucharist and mystical experience, the presence of all the mysteries of Christ (in particular his death, resurrection, and his coming in glory) in the Eucharistic celebration. The systematic part is developed in dialogue with Protestant concerns regarding the Eucharistic presence of Christ and the Eucharist as sacrifice. It also shows the importance of the Greek Fathers' doctrine on the ontological transformation of the Eucharistic elements for transcending the impasse of the contemporary debate on transignification. This book is an essential resource for the study of the Eucharist in STL, STD, and MDiv courses and libraries. It is also recommended for pastors, deacons, and professors. Published by Liturgy Training Publications.