from New Advent
The teaching of the Fathers, and the formularies used in the Liturgy of the Church, found expression in the early Christian monuments, particularly those contained in the catacombs. On the tombs of the faithful were inscribed words of hope, words of petition for peace and for rest; and as the anniversaries came round the faithful gathered at the graves of the departed to make intercession for those who had gone before. At the bottom this is nothing else than the faith expressed by the Council of Trent (Sess. XXV, “De Purgatorio”), and to this faith the inscriptions in the catacombs are surely witnesses.
In the fourth century in the West, Ambrose insists in his commentary on St. Paul (1 Corinthians 3) on the existence of purgatory, and in his masterly funeral oration (De obitu Theodosii), thus prays for the soul of the departed emperor: “Give, O Lord, rest to Thy servant Theodosius, that rest Thou hast prepared for Thy saints. . . . I loved him, therefore will I follow him to the land of the living; I will not leave him till by my prayers and lamentations he shall be admitted unto the holy mount of the Lord, to which his deserts call him” (P.L., XVI, col. 1397). St. Augustine is clearer even than his master. He describes two conditions of men; “some there are who have departed this life, not so bad as to be deemed unworthy of mercy, nor so good as to be entitled to immediate happiness” etc., and in the resurrection he says there will be some who “have gone through these pains, to which the spirits of the dead are liable” (City of God XXI.24). Thus at the close of the fourth century:
Code:
* not only were prayers for the dead found in all the Liturgies, but the Fathers asserted that such practice was from the Apostles themselves;
* those who were helped by the prayers of the faithful and by the celebration of the Holy Mysteries were in a place of purgation;
* from which when purified they "were admitted unto the Holy Mount of the Lord".
So clear is this patristic Tradition that those who do not believe in purgatory have been unable to bring any serious difficulties from the writings of the Fathers. The passages cited to the contrary either do not touch the question at all, or are so lacking in clearness that they cannot offset the perfectly open expression of the doctrine as found in the very Fathers who are quoted as holding contrary opinions (Bellarmine “De Purg.”, lib. I, cap. xiii).
