(f) Tertullian, Ad Uxorem, I, 3; II, 8-10. (MSL, 1:1390, 1415.) Cf. Kirch, n. 181.
I, 3. There is no place at all where we read that marriages are prohibited; of course as a “good thing.” What, however, is better than this “good,” we learn from the Apostle in that he permits marriage, indeed, but prefers abstinence; the former on account of the insidiousness of temptations, the latter on account of the straits of the times (I Cor. 7:26). Now by examining the reason for each statement it is easily seen that the permission to marry is conceded us as a necessity; but whatever necessity grants, she herself deprecates. In fact, inasmuch as it is written, “It is better to marry than to burn” (I Cor. 7:9), what sort of “good” is this which is only commended by comparison with “evil,” so that the reason why “marrying” is better is merely that “burning” is worse? Nay; but how much better is it neither to marry nor to burn?
II, 8. Whence are we to find adequate words to tell fully of the happiness of that marriage which the Church cements and the oblation[59] confirms, and the benediction seals; which the angels announce, and the Father holds for ratified? For even on earth children do not rightly and lawfully wed without their father's consent. What kind of yoke is that of two believers of one hope, one discipline, and the same service? The two are brethren, the two are fellow-servants; no difference of spirit or flesh; nay, truly, two in one flesh; where there is one flesh the spirit is one.
(g) Tertullian, De Monogamia, 9, 10. (MSL, 2:991 f.)
This work was written after Tertullian became a Montanist, and with other Montanists repudiated second marriage, to which reference is made in both passages. But the teaching of the Church regarding remarriage after divorce was as Tertullian here speaks. The reference to offering at the end of ch. 10 does not refer to the eucharist, but to prayers. See above, Ad Uxorem, ch. II, 8.
Ch. 9. So far is it true that divorce “was not from the beginning” [cf. Matt. 19:8] that among the Romans it is not till after the six hundredth year after the foundation of the city that this kind of hardness of heart is recorded to have been committed. But they not only repudiate, but commit promiscuous adultery; to us, even if we do divorce, it will not be lawful to marry.
Ch. 10. I ask the woman herself, “Tell me, sister, have you sent your husband before in peace?” What will she answer? In discord? In that case she is bound the more to him with whom she has a cause to plead at the bar of God. She is bound to another, she who has not departed from him. But if she say, “In peace,” then she must necessarily persevere in that peace with him whom she will be no longer able to divorce; not that she would marry, even if she had been able to divorce him. Indeed, she prays for his soul, and requests refreshment for him meanwhile, and fellowship in the first resurrection; and she offers on the anniversary of his falling asleep.