This way of statement indicates that such ordinances are...

This way of statement indicates that such ordinances are rooted in humane sentiments, ration, and intellect. If man contemplates them, he will get aware that they are good for him. The verse continues saying: “...That is better for you, so that you might be admonished.” Anyway, purification and self-edification are achieved through observing people’s rights and applying Islamic customs.

“And if you find no one therein, still do not enter them until permission is given to you. And if it is said to you: ‘Go back’, then go back, for it is purer for you; and Allah is cognizant of what you do.” Entering people’s house needs permission, whether the giver of permission is its owner or he is some legal person.

Thus, in this holy verse, it says: “And if you find no one therein, still do not enter them until permission is given to you...” Maybe it implies that sometimes there are some persons at home, but someone who is in charge or someone who is the head of household is not present, in this case we are not allowed to enter the house. Or there is not any person in the house.

Or it is possible that the landlord is in neighbour’s home or is near to his house, so when he hears our voice or our knocking at the door, he comes and allows us to enter. In this case we can enter the house. Anyway, what is important is that we can not enter a house without permission. Then the verse continues saying: “...And if it is said to you: Go back, then go back, for it is purer for you...” It refers to the matter that we must not get upset because of a negative answer.

Maybe the landlord is in a condition that he does get displeased if we see him in that way. Or his home or his room is not ready for receiving any guest.