Women should be fulfilling the following three sets of Scriptures in their marriage. Their husband must confirm this in their reference letter/email.
1 Peter 3:1-6, Colossians 3:18, Ephesians 5:22-24; 33b
In the same way, you wives, be submissive to your own husbands so that even if any of them are disobedient to the word, they may be won without a word by the behavior of their wives, 2 as they observe your chaste and respectful behavior.3 Your adornment must not be merely external—braiding the hair, and wearing gold jewelry, or putting on dresses; 4 but let it be the hidden person of the heart, with the imperishable quality of a gentle and quiet spirit, which is precious in the sight of God. 5 For in this way in former times the holy women also, who hoped in God, used to adorn themselves, being submissive to their own husbands; 6 just as Sarah obeyed Abraham, calling him lord, and you have become her children if you do what is right without being frightened by any fear. 1 Peter 3:1-6
18 Wives, be subject to your husbands, as is fitting in the Lord. Colossians 3:18
22 Wives, be subject to your own husbands, as to the Lord. 23 For the husband is the head of the wife, as Christ also is the head of the church, He Himself being the Savior of the body. 24 But as the church is subject to Christ, so also the wives ought to be to their husbands in everything. Ephesians 5:22-24
and the wife must see to it that she respects her husband. Ephesians 5:33b