1 Corinthians 7:12-16

Verse 12

But to the rest speak I, not the Lord - As if he had said: For what I have already spoken I have the testimony of the Lord by Moses, and of my own Lord and Master, Christ; but for the directions which I am now about to give there is no written testimony, and I deliver them now for the first time. These words do not intimate that the apostle was not now under the influences of the Divine Spirit; but, that there was nothing in the sacred writings which bore directly on this point.

If any brother - A Christian man, have a wife that believeth not, i.e. who is a heathen, not yet converted to the Christian faith, and she be pleased to dwell with him, notwithstanding his turning Christian since their marriage, let him not put her away because she still continues in her heathen superstition.
Verse 13

And the woman - Converted from heathenism to the Christian faith; which hath a husband, who still abides in heathenism; if he be pleased to dwell with her, notwithstanding she has become a Christian since their marriage; let her not leave him because he still continues a heathen.
Verse 14

The unbelieving husband is sanctified by the wife - Or rather, is to be reputed as sanctified on account of his wife; she being a Christian woman, and he, though a heathen, being by marriage one flesh with her: her sanctity, as far as it refers to outward things, may be considered as imputed to him so as to render their connection not unlawful. The case is the same when the wife is a heathen and the husband a Christian. The word sanctification here is to be applied much more to the Christian state than to any moral change in the persons; for ἁγιοι, saints, is a common term for Christians - those who were baptized into the faith of Christ; and as its corresponding term קדושים kedoshim signified all the Jews who were in the covenant of God by circumcision, the heathens in question were considered to be in this holy state by means of their connection with those who were by their Christian profession saints.

Else were your children unclean - If this kind of relative sanctification were not allowed, the children of these persons could not be received into the Christian Church, nor enjoy any rights, or privileges as Christians; but the Church of God never scrupled to admit such children as members, just as well as she did those who had sprung from parents both of whom were Christians.

The Jews considered a child as born out of holiness whose parents were not proselytes at the time of the birth, though afterwards they became proselytes. On the other hand, they considered the children of heathens born in holiness, provided the parents became proselytes before the birth. All the children of the heathens were reputed unclean by the Jews; and all their own children holy. - See Dr. Lightfoot. This shows clearly what the apostle's meaning is.

If we consider the apostle as speaking of the children of heathens, we shall get a remarkable comment on this passage from Tertullian, who, in his treatise De Carne Christi, chaps. 37, 39, gives us a melancholy account of the height to which superstition and idolatry had arrived in his time among the Romans. "A child," says he, "from its very conception, was dedicated to the idols and demons they worshipped. While pregnant, the mother had her body swathed round with bandages, prepared with idolatrous rites. The embryo they conceived to be under the inspection of the goddess Alemona, who nourished it in the womb. Nona and Decima took care that it should be born in the ninth or tenth month. Partula adjusted every thing relative to the labor; and Lucina ushered it into the light. During the week preceding the birth a table was spread for Juno; and on the last day certain persons were called together to mark the moment on which the Parcae, or Fates, had fixed its destiny. The first step the child set on the earth was consecrated to the goddess Statina; and, finally, some of the hair was cut off, or the whole head shaven, and the hair offered to some god or goddess through some public or private motive of devotion." He adds that "no child among the heathens was born in a state of purity; and it is not to be wondered at," says he, "that demons possess them from their youth, seeing they were thus early dedicated to their service." In reference to this, he thinks, St. Paul speaks in the verse before us: The unbelieving husband is sanctified by the wife - else were your children unclean; but now are they holy; i.e. "As the parents were converted to the Christian faith, the child comes into the world without these impure and unhallowed rites; and is from its infancy consecrated to the true God."
Verse 15

But if the unbelieving, depart - Whether husband or wife: if such obstinately depart and utterly refuse all cohabitation, a brother or a sister - a Christian man or woman, is not under bondage to any particular laws, so as to be prevented from remarrying. Such, probably, the law stood then; but it is not so now; for the marriage can only be dissolved by death, or by the ecclesiastical court. Even fornication or adultery does not dissolve the marriage contract; nor will the obstinate separation of any of the parties, however long continued, give the party abandoned authority to remarry. If the person have been beyond sea, and not heard of for seven years, it is presumed he may be dead; and marriage has been connived at in such cases. If there be no person to complain, it may be presumed that there is none injured. But I have known instances where even a marriage after seven years' absence has been very unfortunate; the husband returning at the end of ten or twelve years, and to his utter distress finding his wife married to another man, and with issue of that marriage! There can be no safety in this case, unless there be absolute certainty of the death of the party in question.

God hath called us to peace - The refractory and disagreeing party should not be compelled to fulfill such matrimonial engagements as would produce continual jarring and discord. At the same time each should take care that he give no cause for disagreements and separations, for the author of the Christian religion is the author of peace, and has called us to it.
Verse 16

For what knowest thou, O wife - You that are Christians, and who have heathen partners, do not give them up because they are such, for you may become the means of saving them unto eternal life. Bear your cross, and look up to God, and he may give your unbelieving husband or wife to your prayers.
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