Part One:
If the Catholic Church be compared to an army drawn out in battle array (“Canticles 6:9”) we have reason to believe that Jesus Christ, it’s captain, would reserve the best soldiers to withstand the most terrible shock in the Great Day of Tribulation in (“End Times”).
But the people who know and serve the True and Living God shall be victorious in their Faith. God shall send teachers to instruct his people; they shall rush into the midst of fire and sword; they shall be made prisoners and their possessions will be confiscated; some of those teachers shall be cast into a fiery furnace, there to be purified, (“Daniel. 11:32, etc”) Not only the saints but also the angels will hasten to the standard of the Cross and aid the Church in this her Great Tribulation; and Saint Michael the Archangel shall rise and engage in furious combat against the enemy of the people of God (“Daniel 12:11), St. John represents Saint Michael fighting against the dragon (“Satan”) unchained, (“Apoc. 12:7”). Finally, God shall prepare a safe retreat for his faithful children in the desert (“Apoc. 12:14”) which means that God will not allow the demons, all powerful as they will be, to reveal to the emissaries of Antichrist the hiding places of the great number of Christians, who though faithful to God, yet have not the courage enough to confront the enemy or brave the dangers of so terrible a persecution. All this aid will certainly be greater and more abundant in this last struggle, though quite the same in all ages of the Church: God directs all things by His benign Providence, and He will send Elias and Enoch to aid and sustain His spouse in her last trying ordeal.
It is certain that neither Elias nor Enoch are dead. It is written; Enoch walked with God and disappeared. (“Gen. 5:22-24”). Enoch, according to the wise man, was pleasing to God, who placed him in paradise. (“Ecclesiasticus 44:18”). And St. Paul says Enoch was removed, that he might not see death. (“Heb. 11:5”). Scripture is still more explicit relative to Elias. He is said to have been walking in company with Eliseus us on the banks of the Jordan when he was carried off in a fiery chariot to heaven. (“4 Kings 2:11). Eccelsiasticus (“48:9”) and Machabees (“Book 1, 2:58”) allude to the same fact. All the Church Fathers are in perfect accord on this point and teach it as an apostolic tradition.
To deny that Elias and Enoch will return in person would be, according to Jesuit (“Doctor of the Church“1542-1621”) Saint Bellarmine and Catholic theologian Francisco Suárez “1548-1617”, if not heterodoxy, at least erroneous. Elias and Enoch’s coming is announced by Sacred Scriptures in four different places. The prophet (“Malachias 4:5”) says: “I will send you Elias the prophet before the great day of the Lord, and he shall turn the heart of the fathers to children and the heart of children to their fathers.” Again, in Ecclesiasticus 48:10, it is said that Elias was (“predestined in the judgments of times to appease the wrath of the God, to reconcile the heart of the father to the son, and to restore the tribes of Jacob.”) Finally, we read in the Gospel according to St. Matthew (“17:11”) “Elias indeed shall come and restore all things.
Relative to the return of Enoch, the Sacred Scriptures speak only once in a formal manner. Enoch pleased God and was translated into paradise, that he may come and give repentance to the nations. Ecclesiasticus (“44:16”). And although they are nominally specified in the Apocalypse, still it is plain to be seen that they are designated as the two prophets who will be adversaries of the Antichrist. (“Apoc. 11:3-12”). Elias and Enoch will come in person and not in spirit; such is the obvious meaning of the Sacred Scriptures and upheld by the holy Fathers of the Church. For why should God wrest them from common lot of mankind and give ordinary mission at the end of the world? And moreover, would it not be most useful in God’s design to mankind whose faith begins to waver to have a clear no-law, and of the law of grace, especially when that knowledge is obtained from men who bear witness to the time of Elias and Enoch in which they lived, to the fidelity and veracity of our God.
Some of the Fathers of the Church, as also some theologians, have thought that Moses, Jeremias, and St. John the Evangelist (“beloved disciple of Jesus”); would return on the earth before Our Lord’s Great Day of Tribulation in the World. Saint Hilary, Saint Augustine of Hippo, and Saint Ambrose all allude to this, though some theologians argue it being simple conjecture.