Catholic Church
Holy Orders

The sacrament of Holy Orders consecrates and deputes some Christians to serve the whole body as members of three degrees or orders: episcopate (bishops), presbyterate (priests) and diaconate (deacons). The church has defined rules on who may be ordained into the clergy. In the Latin Church, the priesthood is generally restricted to celibate men, and the episcopate is always restricted to celibate men. Men who are already married may be ordained in certain Eastern Catholic churches in most countries, and the personal ordinariates and may become deacons even in the Latin Church (see Clerical marriage). But after becoming a Catholic priest, a man may not marry (see Clerical celibacy) unless he is formally laicized.

All clergy, whether deacons, priests or bishops, may preach, teach, baptize, witness marriages and conduct funeral liturgies. Only bishops and priests can administer the sacraments of the Eucharist, Reconciliation (Penance) and Anointing of the Sick. Only bishops can administer the sacrament of Holy Orders, which ordains someone into the clergy.
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