5 The woman shall not wear that which pertaineth unto a man, neither shall a man put on a woman's garment: for all that do so are abomination unto the LORD thy God.
Now, if you will consider it well, that which nature herself abhors must be incongruous. For why do you not wish to be thought a man, seeing that you are born such? why do you assume an appearance which is foreign to you? why do you play the woman, or you, O woman, the man? Nature clothes each sex in their proper raiment. Moreover in men and women, habits, complexion, gestures, gait, strength and voice are all different.
[AD 397] Ambrose of Milan on Deuteronomy 22:5