Baptism is necessary for salvation according to most Christian belief.
In exceptional circumstances, such as imminent death, a child may be baptized by an unordained person.
Historically speaking, medieval Islam had a strong influence on Christianity, notably in the radical reform which produced the freer forms of Christianity such as Baptists and Pentecostals, who also minimize the sacramental character of baptism and the Lord’s supper.
The sacraments or mysteries number seven: these are baptism, confirmation, the Eucharist, confession, marriage, ordination, and unction.
Christian practice may be divided into two categories: 1) those practices requiring the intervention of a priest and 2) individual practices, or those not requiring the intervention of a priest.
The former are called sacraments in Western Christianity and mysteries in Eastern Christianity.Finally, in the same quarters there are controversies over the use of a single cup or individual cups in the Lord’s supper.Although the Reformation Churches traditionally accept only the first two sacraments, something of the sacramental character has remained with the others as well.The Eucharist consists of the blessing of the wine and bread and the dispensing of it to the congregants.The traditional belief is that the action of the priest turns the bread and wine into the real body and blood of Christ, and by eating and drinking these, the communicant receives grace objectively into him or herself.Finally, the formula was sometimes doubted, and the name of Jesus substituted for the trinitarian phrase.One or more of these variants are still dominant in the modern denominations coming out of the radical reformation, such as Baptists, Mennonites, Pentecostals, Adventists, Jehovah’s Witnesses, and Mormons.An ordinance or footwashing to precede the supper is an issue of controversy in the radical reform.This however seems to be the result of a literal interpretation of John 14 rather than an influence of Islam.This is the fundamental difference between Islamic and Christian practice.The Muslim does not need the Church as a channel of grace but may approach God directly in all matters.