Deuteronomy 22:5

5.This decree also commends modesty in general, and in it God anticipates the danger, lest women should harden themselves into forgetfulness of modesty, or men should degenerate into effeminacy unworthy of their nature. Garments are not in themselves of so much importance; but as it is disgraceful for men to become effeminate, and also for women to affect manliness in their dress and gestures, propriety and modesty are prescribed, not only for decency’s sake, but lest one kind of liberty should at length lead to something worse. The words of the heathen poet are very true: (97)

What shame can she, who wears a helmet, show,
Her sex deserting?”