The answer
1. What does the Coptic Orthodox church have to say about this whole angel story?"He makes His angels spirits, His ministers a flame of fire" (Ps. 104:4). Because angels are spirits and created to be ministers before God, their sins were deliberate and executed by their own free will. They were not bound by the restrictions of time or the frailty of human life in the same manner as humans. They were not created from the dust as was man. They were not deceived or coerced into disobedience, but made a willful decision to disobey, and therefore, were not given grace for repentance. The illustration of Enoch interceding on behalf of angels does not seem probable. The notion that these fallen angels would have even repented is just as improbable. What then would be the purpose of repentance if it is not through the grace of God and for the purpose of restoration? Because of man's weaknesses demonstrated by his frailty in being deceived, God extended His mercy by giving humanity opportunities for repentance. Salvation required Divine Justice, the price of the shedding of blood by which only Jesus Christ, the Son of God, had to bear with obedience for humanity's redemption. This He did by taking the weak flesh of man and uniting it unto Himself to God. One of the major reprimands that the scholar Origen received during the early church was in part due to his ideology, which assumed that at some point, Satan and other fallen angels would have an opportunity for repentance. This ideology was clearly rejected by the church and was one of the reasons for his exile. The Holy Scripture clearly states that Satan would burn in hell forever and also those who followed his wicked ways, i.e., man and demons. Although there are numerous texts testifying to this matter, the Holy Book of Revelation is evidence enough.
2. What does the Coptic Orthodox Church have to say about the Book of Enoch? (Some of the articles that I read say that the Book of Enoch must have been recognized by the early apostolic fathers because St. Jude quotes it in verses 14 and 15).
Because it is not a canonical book, the Coptic Orthodox Church rejects this uncorroborated Book of Enoch and does not include it in its teachings. The early apostolic fathers only use this one quote referenced by St. Jude as part of the traditional oral teaching of the Old Testament rather than as validation of the Book of Enoch as canonical text.
3. Was that member of the Ethiopian Church who was with us on that day just confused or were all those things that he said about his church true?
The Ethiopian Orthodox Church, as well as other Oriental Orthodox Churches that are in communion with the Coptic Orthodox Church, may have some slight differences pertaining to their region, culture, and traditions. However, what is shared amongst us is the common dogma, which is the basis for the continued communion amongst these churches. Perhaps, there is some confusion as to his understanding.
4. How can we take communion at their church, and they at ours, if our priests follow different orders of the priesthood (we follow the order of Melchizedek)? How is it in the first place that they can claim a different priesthood than Christ’s (when I asked him this, he said that Ethiopia was originally Jewish before converting to Christianity and that they already had priests to care for the Ark of the Covenant)?
Please see the answer below taken directly from the Diocese Q/A as it pertains to your question and provides a brief but thorough historical background:
5. Why do they still follow the laws of the Old Testament?
The priesthood of Aaron and the Levites ended with Christ. Thereafter, our Lord Jesus Christ appointed apostles for the ministry of the priesthood. As for the dietary rules of the Ethiopian Church during the fasting and non-fasting seasons, they are not wrong, and neither are we. It is a matter of tradition rather than doctrine. For this purpose, we do not interfere nor rebuke their decision regarding this matter of dietary rules.
Answered by His Eminence Metropolitan Youssef (opens in a new tab)