​ The word Copt is derived from the Greek word Aigyptos, which was, in turn, derived from "Hikaptah", one of the names for Memphis, the first capital of Ancient Egypt. The modern use of the term "Coptic" describes Egyptian Christians, as well as the last stage of the ancient Egyptian language script. Also, it describes the distinctive art and architecture that developed as an early expression of the new faith.

The Coptic Church is based on the teachings of Saint Mark who brought Christianity to Egypt during the reign of the Roman emperor Nero in the first century, a dozen of years after the Lord's ascension. He was one of the four evangelists and the one who wrote the oldest canonical gospel. Christianity spread throughout Egypt within half a century of Saint Mark's arrival in Alexandria as is clear from the New Testament writings found in Bahnasa, in Middle Egypt, which date around the year 200 A.D., and a fragment of the Gospel of Saint John, written using theCoptic language, which was found in Upper Egypt and can be dated to the first half of the second century. The Coptic Church, which is now more than nineteen centuries old, was the subject of many prophecies in the Old Testament.Isaiah the prophet, in Chapter 19, Verse 19 says "In that day there will be an altar to the LORD in the midst of the land of Egypt, and a pillar to the LORD at its border."

Perhaps the greatest glory of the Coptic Church is its Cross. Copts take pride in the persecution they have sustained as early as May 8, 68 A.D., when their Patron Saint Mark was slain on Easter Monday after being dragged from his feet by Roman soldiers all over Alexandria's streets and alleys. The Copts have been persecuted by almost every ruler of Egypt. Their Clergymen have been tortured and exiled even by their Christian brothers after the schism of Chalcedon in 451 A.D. and until the Arab's conquest of Egypt in 641 A.D. To emphasize their pride in their cross, Copts adopted a calendar, called the Calendar of the Martyrs, which begins its era on August 29, 284 A.D., in commemoration of those who died for their faith during the rule of Diocletian the Roman Emperor. This calendar is still in use all over Egypt by farmers to keep track of the various agricultural seasons and in the Coptic Church Lectionary.

Despite persecution, the Coptic Church as a religious institution has never been controlled or allowed itself to control the governments in Egypt. This long-held position of the Church concerning the separation between State and Religion stems from the words of the Lord Jesus Christ himself, when he asked his followers to submit to their rulers:"Render therefore to Caesar the things that are Caesar's, and to God the things that are God's." [Mathew 22:21]. The Coptic Church has never forcefully resisted authorities or invaders and was never allied with any powers, for the words of the Lord Jesus Christ are clear: "Put your sword in its place, for all who take the sword will perish by the sword." (Mathew 26:52). The miraculous survival of the Coptic Church till this day and age is a living proof of the validity and wisdom of these teachings.

Today there are over 9 million Copts (out of a population of some 57 million Egyptians) who pray and share communion in daily masses in thousands of Coptic Churches in Egypt. This is in addition to another 1.2 million emigrant Copts who practice their faith in hundreds of churches in the United States, Canada, Australia, Britain, France, Germany, Austria, Holland, Brazil, and many other countries in Africa and Asia. Inside Egypt Copts live in every province and in no one of these provinces are they a majority. Their cultural, historical, and spiritual treasures are spread all over Egypt, even in its most remote oasis, the Kharga Oasis, deep in the western desert. As individuals, Copts have reached prestigious academic and professional stature all over the world. One such individual is Dr. Boutros Boutros Ghali the Sixth United Nations Secretary-General (1992-1997).Another is Dr. Magdy Yacoub one of the world's most famous heart surgeons.

Copts observe seven canonical sacraments: Baptism, Christmation (Confirmation), Eucharist, Confession (Penance), Orders, Matrimony, and Unction of the sick. Baptism is performed few weeks after birth by immersing the whole body of the newborn into especially consecrated water three times. Confirmation is performed immediately after Baptism. Regular confession with a personal priest, called the father of confession, is necessary to receive the Eucharist. It is customary for a whole family to pick the same priest as a father of confession, thus, making of that priest a family counselor. Of all seven sacraments, only Matrimony cannot be performed during a fasting season. Polygamy is illegal, even if recognized by the civil law of the land. Divorce is not allowed except in the case of adultery, annulment due to bigamy, or other extreme circumstances, which must be reviewed by a special council of Bishops. Divorce can be requested by either husband or wife. Civil divorce is not recognized by the Church. The Coptic Orthodox Church does not have and does not mind any civil law of the land as long as it does not interfere with the Church's sacraments. The Church does not have (and actually refuses to canonize) an official position vis-à-vis some controversial issues (e.g. abortion). While the church has clear teachings about such matters (e.g. abortion interferes with God's will), it is the position of the Church that such matters are better resolved on a case-by-case basis by the father of confession, as opposed to having a blanket canon that makes a sin of such practices.

​There are three main Liturgies in the Coptic Church: The Liturgy according to Saint Basil, Bishop of Caesarea; The Liturgy according to Saint Gregory of Nazianzus, Bishop of Constantinople; and The Liturgy according to Saint Cyril I, the 24th Pope of the Coptic Church. The bulk of Saint Cyril's Liturgy is from the one that Saint Mark used (in Greek) in the first century. It was memorized by the Bishops and priests of the church till it was translated into the Coptic Language by Saint Cyril. Today, these three Liturgies, with some added sections (e.g. the intercessions), are still in use; the Liturgy of Saint Basil is the one most commonly used in the Coptic Orthodox Church.