Telling about the unseen is plenty in the Book of Allah (swt) and this Surah is one of them. In it Allah (swt) informs about how support, stabilization and triumph will the Islamic call will be established in future after all what its followers have been through from oppression and siege that closed the earth on them until there was not any glimpse of hope of victory.
However, out of the black darkness, the light emerges, the Prophet (swt) received the revelation while he (saws) was suffering from the siege, telling him (saws): (When the victory of Allah has come and the conquest (1) And you see the people entering into the religion of Allah in multitudes, (2)). This is the miraculous Qur’an and this is one of its great miracles. Would the Prophet (saws) has told the people these words from his own while contrary events might come later on?? Of course, no.
The Prophet (saws) was sure it is a revelation from Allah (swt), Who owns the reasons of victory and no power what so ever can disagree or prevent execution of His will. The Prophet (saws) announces these words of His Lord which became a Qur’an being recited and worshiped through.
This Surah was revealed before any victory or conquest took place and it has an apparent meaning and a concealed one.
نَصْرُ اللَّهِ (the victory of Allah): Victory is a consequence of battle between two parties when one of them overcomes the other.
وَالْفَتْحُ (the conquest): To enter into the religion without fight.
As if these verses brought to the Prophet (saws) a good tiding of the events; victory and conquest. Victory indicates strength and the conquest indicates peace. So, Allah the Wise (swt) willed to give His Prophet (saws) two kinds of support, in war and in peace. Looking in the Islamic call, we find that it has spread in the whole world uniquely throughout the history.
This widespread was due to two elements; the first one is the military power of the conqueror and the second is the principles and the moral values which attracted people to Allah’s (swt) religion by which they saw their salvation from the corruption they were suffering from.
After the Prophet (saws) won and his call to Allah (swt) raised, they hurried to it, so that, people entered into the religion of Allah (swt) in multitudes, whereas, previously they were entering into it individually.
Hence, we are in front of a victory in the battle field and a conquest in which people entered into the religion of Allah (swt) peacefully.