John Calvin Commentary Titus 2:4

"that they may train the young women to love their husbands, to love their children," — Titus 2:4 (ASV)

That they may teach young women temperance. So that they may be more attentive to duty, he shows that it is not enough if their own life is decent, if they do not also train young women, by their instructions, to a decent and chaste life. He therefore adds that by their example they should train to temperance and gravity those younger women whom the warmth of youth might otherwise lead into imprudence.

To love their husbands and their children. I do not agree with those who think that this is a recapitulation of the guidance that elderly women should give to younger women, because a careful reading of the context will easily enable anyone to perceive that Paul continues to explain the duties of women, which apply equally to older women.

Besides, the construction would be inappropriate: σωφρονίζωσι, σώφρονας εἶναι. Yet, while he instructs elderly women what they ought to be, he at the same time holds out to younger women the example they ought to follow. Thus he indiscriminately teaches both. In short, he wishes women to be restrained by conjugal love and affection for their children from giving themselves up to licentious attachments; he wishes them to rule their own house in a sober and orderly manner; he forbids them to wander about in public places; and he bids them be chaste and at the same time modest, so as to be subject to the dominion of their husbands. For those who excel in other virtues sometimes find in them an occasion to act haughtily, so as to be disobedient to their husbands.

When he adds, that the word of God may not be evil spoken of, it is supposed that this relates strictly to women who were married to unbelieving husbands, who might judge the gospel from the wicked conduct of their wives; and this appears to be confirmed by 1 Peter 3:1. But what if he does not speak of husbands alone? And, indeed, it is probable that he demands such strictness of life as not to bring the gospel into public contempt through their vices. As to the other parts of the verse, the reader will find them explained in the Commentary on the First Epistle to Timothy.