From the early Church Fathers to now.
4 Patristic · 1 Orthodox · 1 Catholic
“Is any man sick among you? Let him bring in the priests of the church, and let them pray over him, anointing him with oil in the name of the Lord.”
“This sickness is the sickness of sin. If someone is struck down by his own thoughts, then he should pray on his own, but if he has committed some sin he should ask for the church's prayers. The custom mentioned here is followed even today, for the grace of mercy is symbolized by oil.”
“Is anyone among you sick? etc. Just as he gave counsel to the sorrowful, so he gives counsel to the sick, on how to guard themselves from the foolishness of murmuring, and he sets the manner of healing according to the manner of the wound, instructing the sorrowful that they should pray and sing Psalms for themselves, but commanding the sick either in body or in faith to remember to cure themselves with the aid of several, and especially elders, and not to refer the cause of their weakness to the younger and less learned, lest they might receive some harmful word or advice from them.”
“And let them pray over him, anointing him, etc. We read that the apostles did this in the Gospel, and now the custom of the Church holds that the sick are anointed with consecrated oil by the presbyters, and are healed with accompanying prayer. Not only the presbyters, but as Pope Innocent writes, also all Christians are permitted to use the same oil to anoint in their own or their relatives' necessity, though this oil may only be consecrated by bishops. For what he says, With oil in the name of the Lord, signifies oil consecrated in the name of the Lord. Or certainly because when they anoint the sick, they should also invoke the name of the Lord over him.”
“The apostles were already doing this even when the Lord still lived among men: they anointed the sick with oil (Mark 6:13).”
“Is any man sick among you? [3] or in danger of death by sickness, let him call, or bring in the priests of the Church, &c. The apostle here enjoins the constant use of the sacrament, called extreme unction, or the last anointing with oil, instituted, (as were all the sacraments of the Church) by our Saviour Christ, and which is here fully and clearly delivered in plain words, expressing, 1. the persons to whom this sacrament is to be administered; 2. the minister; 3. the form; 4. the matter; 5. the effects. As to the first , is any man sick among you? This sacrament then is to be given to every believing Christian, who is in danger of death by sickness. 2. Bring in the priests, one or more, they are the ministers of this sacrament. The Protestant translation has the elders; yet in their book of common prayer, he who is called in to assist and pray with the sick, is called either the minister, the curate, or the priest, never the elder. Dr. Wells has not changed the word elders in his translation; but in his paraphrase he expounds it of those ministers of the church who are above deacons. 3. And let them pray over him. Besides other prayers, the form of this sacrament is by way of prayer, let the Lord forgive thee, &c. 4. Anointing him with oil. The oil with which he is anointed by the priest, is the outward visible sign, and the matter of this sacrament, as water is the matter of baptism. 5. And the prayer of faith shall save the sick man, &c. All the sacraments of the new law have their virtue from the merits of our Saviour, Christ, and therefore must be ministered and received with faith in our Redeemer. (Witham) — Is any man sick? &c. The Greek expression in this place is equivalent to, “Is any one dangerously ill amongst you?” Asthenei tis en umin . The primary intention of this sacrament of extreme unction, is to confer a special grace upon the dying Christian, to strengthen him in his last and dreadful conflict, when the prince of darkness will exert his utmost to ruin his poor soul. But besides this, it was also intended to free man from venial sin, and likewise from mortal, if guilty of any, provided he were contrite and not able to have recourse to the sacrament of penance. But the sacrament of penance being the only regular means of obtaining pardon for mortal sin committed after baptism, a person must first have recourse to this sacrament, if he be able, as a necessary preparation for the sacrament of extreme unction. Other effects of this sacrament are, that it lessens the temporal punishment due to sin, and restores health to the worthy receiver, if it be expedient for the good of his soul. (St. Augustine, serm. 215. C. Theol. Petav. Habert. Bailly, &c. de Extrem. Unct.) — How great then is the folly of such persons as are afraid to receive this sacrament, imagining it to be the irrevocable sentence of impending dissolution? whereas one of the very effects of this sacrament is to restore health, if it be expedient for the soul; and who would wish for health upon any other conditions? (Haydock) — The anathemas pronounced by the council of Trent against those who deny the existence of this sacrament, are sufficient to establish the belief of it in the minds of Catholics. See session 14, canon 1, 2 and 3, of the council of Trent. It may be proper, however, to observe, in confirmation of our belief of this sacrament, that whenever the ancient Fathers have had occasion to speak of extreme unction, they have always attributed to it all the qualities of a sacrament, as St. Chrysostom who proves from this text of St. James the power which the priest has to forgive sins; (lib. 3. de Sacerdotio.; St. Augustine, ser. 215) not to mention Origen, who wrote at the beginning of the third century, (hom. ii. in Levit.) enumerating the different ways by which sins are forgiven in the new law, says, “That they are remitted when the priests anoint the sick with oil, as is mentioned in St. James.” When Decentius, bishop of Eugenium in Italy, in 416[A.D. 416], wrote to Innocent I upon this sacrament, he makes no question whether it was a sacrament, but only consults him concerning the manner of administering; whether a bishop could give it, or whether priests were the only administerers of this sacrament, as St. James says, “Let them call in the priests of the Church;” and whether it could be given to penitents before they had been reconciled by absolution. To the former question, the pope replied there could be no doubt, as St. James could never mean that bishops were excluded as being higher than priests; but that he supposed them to be taken up with other things. We might add to this, the word presbyter was then used indiscriminately for both bishops and priests. (Haydock) — As to the next question, whether penitents could receive this sacrament before absolution, he answered in the negative. “For,” says he, “can it be thought that this one sacrament can be given to those who are declared unworthy of receiving the rest?” (Innocent I in epist. ad Decent. chap. viii.; Habert. de Extre. Unct.) — If it be objected that mention is not more frequently made of this sacrament in the writings of the ancients, we will answer with Bellarmine, that the most evident things were not always written, but only as occasion offered, that many of the mysteries were kept secret, to preserve them from the ridicule of the infidels. That in the times of persecution it was more difficult to administer this sacrament and less necessary, as the greatest part of Christians died not by sickness but by martyrdom. (Theol. Petav. de Extre. Unc.) — Ven. Bede in Luke ix. speaketh thus: “It is clear that this custom was delivered to the holy Church by the apostles themselves, that the sick should be anointed with oil consecrated by the bishop’s blessing.” — Let him bring in, &c. See here a plain warrant of Scripture for the sacrament of extreme unction, that any controversy against its institution would be against the express words of the sacred text in the plainest terms. (Challoner) — And the Lord, by virtue of this sacrament, or if you will, sacramental prayer, shall raise him up, shall give him spiritual strength and vigour to resist the temptations which at that hour are most dangerous. He shall also raise him up, by restoring him his corporal health, when God sees it more expedient for the sick man. — And if he be in sins, they shall be forgiven him, not merely by prayer, but by this sacrament. (Witham)”
“Is anyone among you sick? Let him call for the elders of the church, and let them pray over him, anointing him with oil in the name of the Lord, and the prayer of faith will save the one who is sick, and the Lord will raise him up; and if he has committed sins, he will be forgiven. "anointing him with oil." This is what the apostles did while the Lord was still among men, anointing the sick with oil and healing them. (Mark 6:13)”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.