Clench your teeth (so that your anger increases)...
Clench your teeth (so that your anger increases), bare your head to God and nail your feet to the ground. Survey the enemy's forces and cast down your look"1 That is, 'do not fix your gaze on the enemy'. There are essentially two ways of looking. One is to look at another with care as if you were evaluating the person by the wasy he looked or dressed. But another kind of looking is in order to speak to that person and you look since looking is necessary for conversation.
This is a looking which is introductory and a means for speaking. This is an organic looking while the former is an autonomous kind. Thus the sentence means: "Tell the believers not to state at or flirt with women." **ON THE COMMAND TO GUARD THEIR PRIVATE PARTS** In the next sentence it says, "Tell the believing men ... to guard their private parts." (24 : 30) To guard from what? From everything which is not correct, guard against both corruption and the glance of others.
As you know, it was not the custom among Arabs in the Age of Ignorance to hide their private parts. Islam came and made it obligatory to cover this area. It should be noted that the present western civilization is moving directly towards the habits of the pre-Islamic Arabs in the Age of Ignorance and they are continuously weaving philosophies justifying that nakedness is a good thing. Russell in "On Discipline", says that another illogical ethics or taboo is Nahj al-Balaghah, Sermon 110.
that a mother and father tell their children to cover themselves which only creates a greater curiosity in children and parents should show their sexual organs to children so that they become aware of whatever there is from the beginning. Now, they do this. But the Holy Quran says, "And guard your private parts", both from corruption and from the view of others.
Covering one's private parts is obligatory in Islam except, of course, between a husband and wife and it is among the most disapproved acts for a mother to be naked before her son or a father before his daughter. "That is purer for them. God is aware of the things they do"1. The Holy Prophet said that from childhood a certain event occurred several times.
He sensed that there was another kind of power within him and it would not allow him to do things that were being done during the Age of Ignorance. He said once when he was a child he was playing with the children. Masons were building a house for one of the Quraish nearby.