Doctrine In reference to the
Eucharist as a sacrifice, Communion under both kinds belongs at least to the integrity and essence, of the rite, and may not be omitted without violating the precept of Christ: "Do this in remembrance of me" (
Luke 22:19). This is mentioned implicitly by the
Council of Trent (Sess. XXI, c. i; XXII, c. i), and the
Second Vatican Council emphasised that "the dogmatic principles which were laid down by the Council of Trent [remain] intact". The
General Instruction of the Roman Missal states that the people "should share the cup when it is permitted. Then, Communion is a clearer sign of sharing in the sacrifice that is actually being celebrated."
Practice aboard a
US Navy ship. Catholicism teaches that Christ is sacramentally (and equally) present under each species, and therefore if a person receives only one species, Christ is fully present and nothing is lacking. In the Early Church, Communion was ordinarily administered and received under both kinds. That such was the practice is mentioned by Paul in I Corinthians 11:28. This became the most emblematic issue of the
Hussite Wars, which resulted in the permission of the communion under both kinds for
Utraquists in Bohemia
in 1433 (it would be banned again in 1627 and allowed again by the
Patent of Toleration in 1781). In the following century, this was challenged again by the
Protestant Reformers, including
Martin Luther,
John Calvin and
Huldrych Zwingli. Regular use of Communion under both kinds requires the permission of the bishop, but bishops in many countries have given blanket authorisation to administer Holy Communion in this way. In the United States, the Notre Dame Study of Catholic Parish Life showed that by 1989, slightly less than half of the parishes in its survey offered the chalice to their congregations. ==Eastern Orthodoxy==