It can be difficult when the husband is not a believer in Christ. In such cases, the Bible mentions as below. –> It does not imply to be subject to a violent or an abusive husband which endangers the wive’s or children’s lives. Also if the husband insists on something which is contradictory to the Lord’s clear teaching, there is no need to obey that particular thing, because a woman has to give more importance to the headship of Christ and then to the headship of her husband. But otherwise let the wife live with her husband and win him to Christ through her behaviour. The Lord will give the grace to the wife who tries to honour the Lord through her behaviour.
3 Likewise, ye wives, be in subjection to your own husbands; that, if any obey not the word, they also may without the word be won by the conversation of the wives;
2 While they behold your chaste conversation coupled with fear.
3 Whose adorning let it not be that outward adorning of plaiting the hair, and of wearing of gold, or of putting on of apparel;
4 But let it be the hidden man of the heart, in that which is not corruptible, even the ornament of a meek and quiet spirit, which is in the sight of God of great price.
5 For after this manner in the old time the holy women also, who trusted in God, adorned themselves, being in subjection unto their own husbands:
6 Even as Sara obeyed Abraham, calling him lord: whose daughters ye are, as long as ye do well, and are not afraid with any amazement.
1 Corinthians 7
10 And unto the married I command, yet not I, but the Lord, Let not the wife depart from her husband:
11 But and if she depart, let her remain unmarried or be reconciled to her husband: and let not the husband put away his wife.
12 But to the rest speak I, not the Lord: If any brother hath a wife that believeth not, and she be pleased to dwell with him, let him not put her away.
13 And the woman which hath an husband that believeth not, and if he be pleased to dwell with her, let her not leave him.
14 For the unbelieving husband is sanctified by the wife, and the unbelieving wife is sanctified by the husband: else were your children unclean; but now are they holy.
15 But if the unbelieving depart, let him depart. A brother or a sister is not under bondage in such cases: but God hath called us to peace.
16 For what knowest thou, O wife, whether thou shalt save thy husband? or how knowest thou, O man, whether thou shalt save thy wife?
17 But as God hath distributed to every man, as the Lord hath called every one, so let him walk. And so ordain I in all churches.