A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behavior, given to hospitality, apt to teach;
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Ambrose of Milan
AD 397
Therefore, the apostle laid down the law saying, “If any one is without reproach, the husband of one wife.” Whoever, then, is without reproach, the husband of one wife, is included among those held by the law to be qualified for the priesthood, but he who entered a second marriage has not the guilt of pollution, though he is disqualified from the privilege of the priesthood.
Some people run down the law and marriage. To them it is as if marriage were alien to the new covenant and merely a legalism. What do they say in face of this text? Especially those who have such an aversion to sex and childbirth—what have they to say in answer? Paul himself sets it down that leadership in the church should rest with “a bishop who presides successfully over his household” and that “marriage to one wife” constitutes a household with the Lord’s blessing.
Quid autem ad haec dicunt, qui in legem invehuntur, et in matrimonium, quasi sit solum a lege concessum, non autem etiam in Novo Testamento? Quid ad has leges latas possunt dicere, qui sationem abhorrent et generationem? cure "episcopum "quoque, "qui domui recte praesit"
Do not let the oncemarried set at nought those who have come together in marriage for the second time. For continence is a fine thing and admirable. But folk may be pardoned for contracting a second marriage, lest infirmity end in fornication.
A bishop (the same name then comprehended priest) to be blameless, as to life and conversation, adorned, (says St. Chrysostom) with all virtues. See also St. Jerome in his letter to Oceanus.
The husband of one wife. It does not signify, that to be a bishop or priest he must be a married man; nor that he must be a man who has but one wife at a time; but that he must be a man who has never been married but once, or to one wife: because to be married more than once, was looked upon as a mark of too great an inclination to sensual pleasures. It is true, at that time a man might be chosen to be a bishop or priest whose wife was living, but from that time he was to live with her as with a sister. This St. Jerome testifies as to the discipline of the Latin Church. (Witham)
The meaning is not that every bishop should have a wife, (for St. Paul himself had none) but that no one should be admitted to the holy orders of bishop, priest, or deacon, who had been married more than once. (Challoner)...
When making a vessel of iron, we entrust the task not to those who know nothing about the matter but to those who are acquainted with the art of the smith. Ought we not, therefore, to entrust souls to him who is wellskilled to soften them by the fervent heat of the Holy Spirit and who by the impress of rational implements may fashion each one of you to be a chosen and useful vessel? It is thus that the inspired apostle bids us to take thought, in his epistle to Timothy, laying injunction upon all who hear, when he says that a bishop must be without reproach. Is this all that the apostle cares for, that he who is advanced to the priesthood should be irreproachable? And what is so great an advantage as that all possible qualifications should be included in one? But he knows full well that the subject is molded by the character of his superior and that the upright walk of the guide becomes that of his followers too. For what the Master is, such does he make the disciple to be.
A Bishop then, he says, must be blameless, the husband of one wife. This he does not lay down as a rule, as if he must not be without one, but as prohibiting his having more than one. For even the Jews were allowed to contract second marriages, and even to have two wives at one time. For marriage is honorable, Hebrews 13:4 Some however say, that this is said that he should be the husband of one wife. Blameless. Every virtue is implied in this word; so that if any one be conscious to himself of any sins, he does not well to desire an office for which his own actions have disqualified him. For such an one ought to be ruled, and not to rule others. For he who bears rule should be brighter than any luminary; his life should be unspotted, so that all should look up to him, and make his life the model of their own. But in employing this exhortation, he had no common object in view. For he too was about to appoint Bishops, (which also he exhorts Titus to do in his Epistle to him,) and as it w...
Blameless: every virtue is implied in this word. If anyone is conscious to himself of any sins, he does not well to desire an office for which his own actions have disqualified him…. For why did no one say of the apostles that they were fornicators, unclean or covetous persons, but that they were deceivers, which relates to their preaching only? Must it not be that their lives were irreproachable? This is clear.
Such a one a bishop ought to be, who has been the "husband of one wife".
We have already said, that a bishop, a presbyter, and a deacon, when they are constituted, must be but once married, whether their wives be alive or whether they be dead; and that it is not lawful for them, if they are unmarried when they are ordained, to be married afterwards; or if they be then married, to marry a second time, but to be content with that wife. which they had when they came to ordination.