Women who are single should exhibit these qualities. Their reference must confirm this in their reference letter/email.

1 Peter 3:3-4

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."

1 Timothy 2:9-12

9 Likewise, I want women to adorn themselves with proper clothing, modestly and discreetly, not with braided hair and gold or pearls or costly garments, 10 but rather by means of good works, as is proper for women making a claim to godliness. 11 A woman must quietly receive instruction with entire submissiveness. 12 But I do not allow a woman to teach or exercise authority over a man, but to remain quiet.