Why did Allah Subhana Wa Taala appoint different miracles to each prophet?

Holy Book of Islam: Holy Quran, the Eternal Miracle and Complete Way of Life

Holy Quran, the Eternal MiracleImam Reza Aleh Salam has said: "Wisdom is man's friend, and ignorance is his enemy."

Ibn Sikkit, a great literary scholar of his era, once asked Imam Reza Aleh Salam : "Why did Allah Subhana Wa Taala appoint different miracles to each prophet? He sent Prophet Musa / Moses (Choicest blessing and peace be upon him) with miracles of the cane and the halo hand, Prophet Isa/Jesus (Choicest blessing and peace be upon him) with the power to heal and Holy Prophet Muhammad ( Peace and Blessings Be Upon Him &HP) with the miracle of eloquence?"

Imam Reza Aleh Salam replied: "When Allah Subhana Wa Taala appointed Musa / Moses as a prophet, it was in an era when magic and supernatural acts were more common among people than science. Musa / Moses therefore, brought an act that people had never seen before and could not understand it through their rational. With this miracle, he was able to refute the works of the magicians and give them clear proof.

At the time of Isa/Jesus, on the other hand, diseases without cure had spread throughout. Science and [Banned Word Used] was highly in demand. Isa/Jesus therefore came to them with the miracle of healing all diseases, a power not known to them, for he could give life to the dead, and heal genetic blindness and leprosy. And through his miracles, he fulfilled his proof upon the people of his time.

However, Holy Prophet Muhammad (Choicest blessing and peace be upon him) was appointed at a time when poetry and eloquence in language was very popular among the communities. With the revelation of Holy Quran and its teachings, Allah Subhana Wa Taala refuted their reasoning."

The miracles of the previous prophets were suitable for the era in which they lived. We do not have access to most of them. The only eternal miracle that has lived its way to us is Holy Quran: a miracle that till this day is being examined in all its different aspects, including its eloquence and language. Although Holy Quran descended in an era where significant attention was paid to poetry and language, nevertheless Holy Quran was not limited to that era, rather later generations can also relate to its message and miracles. For instance, there are cases in which Holy Quran predicts the future; and even cases in which Holy Quran points to secrets of creation that were discovered long after Holy Quran's revelation. These facts imply that Holy Quran was revealed by the one who knows everything about the creation of the universe. Further, this holy book of Islam was brought by a Prophet who had not gone to any academy or school, and therefore could not have compiled Holy Quran himself. Indeed Holy Quran was descended by the Lord of the universe.