“And some of them look at you...
“And some of them look at you, but can you guide the blind even though they will not see (inwardly)?” Not all kinds of observation always take place with insight and not every observer is attracted by the truth. Even the prophets could not affect those who were blind-hearted. That is why the Qur’an inquires whether he wish to be able to guide a blind man who is not only blind but also is lacking in insight; in addition to his blindness.
“Verily Allah does not any injustice to people but people to their own selves do injustice.” Allah has sent the best school, the best Book and the best leader for the people. If they do not accept them, they in fact inflict oppression upon themselves. That is, Allah does not hinder anyone from benefiting from the Qur’an and other divine proofs.
“And on the Day He will muster them, as if they had tarried but an hour of the day, they will recognize each other. Those will verily have perished who denied the meeting with Allah and were not guided a right.” The greatness of the Day of Judgment is such that ones entire life prior to it will seem as if it lasted only a short time.
The Qur’an commands us to remember the Day when Allah will make them all rise from the dead and assemble them and they will have a feeling that their entire lives in this world had not exceeded more than one single day, so much that they would get to see and to know one another.