Ambrosiaster : No one should be forced to do something unlawful on the ground that he is forbidden to do what is lawful. It is up to each person to discern which path to follow. — COMMENTARY ON PAUL'S EPISTLES Irenaeus : But why say I these things concerning the Old Testament? For in the New also are the apostles found doing this very thing, on the ground which has been mentioned, Paul plainly declaring, "But these things I say, not the Lord." And again: "But this I speak by permission, not by commandment." And again: "Now, as concerning virgins, I have no commandment from the Lord; yet I give my judgment, as one that hath obtained mercy of the Lord to be faithful." But further, in another place he says: "That Satan tempt you not for your incontinence." If, therefore, even in the New Testament, the apostles are found granting certain precepts in consideration of human infirmity, because of the incontinence of some, lest such persons, having grown obdurate, and despairing altogether of their salvation, should become apostates from God,-it ought not to be wondered at, if also in the Old Testament the same God permitted similar indulgences for the benefit of His people, drawing them on by means of the ordinances already mentioned, so that they might obtain the gift of salvation through them, while they obeyed the Decalogue, and being restrained by Him, should not revert to idolatry, nor apostatize from God, but learn to love Him with the whole heart. — Against Heresies Book IV John Chrysostom : "But this I say by way of permission, not of commandment. For I would that all men were even as I myself; in a state of continence." This he doth in many places when he is advising about difficult matters; he brings forward himself, and says, "Be ye imitators of me." "Howbeit each man hath his own gift from God, one after this manner, and another after that." Thus since he had heavily charged them saying, "for your incontinence," he again comforteth them by the words, "each one hath his own gift of God;" not declaring that towards that virtue there is no need of zeal on our part, but, as I was saying before, to comfort them. For if it be a "gift," and man contributes nothing thereunto, how sayest thou, "But I say to the unmarried and to widows, it is good for them if they abide even as I: but if they have not continency let them marry?" Do you see the strong sense of Paul how he both signifies that continence is better, and yet puts no force on the person who cannot attain to it; fearing lest some offence arise? — Homily on 1 Corinthians 19 Tertullian : Add to this the fact that the apostle, with regard to widows and the unmarried, advises them to remain permanently in that state, when he says, "But I desire all to persevere in (imitation of) my example: " but touching marrying "in the Lord," he no longer advises, but plainly bids. — To His Wife Book II