The purpose of this study is to cast light on the linguistic influences of the Quran on Arabic in the aspects of the vocabularies, the grammar, and the expressions. As a language of the first Arabic book, Quran, Arabic was aneffective tool to convey the religious message of Islam to unbelievers from a muslim`s point of view. But it is also true that the Quran and Islam had a deep impact on the Arabic itself. In this study, I tried to clarify the unique bond between Arabic and Islam, the social role and status of Arabic in pre-Islamic Arabia, the inimitability of Quran, and Quran`s linguistic influences on the Arabic. The fact that the Quran includes many foreign vocabularies resulted in great interest of Muslim scholars in the borrowing, an important aspect of the linguistic evolution. And the interests in Quran and Islam helped Arabic Alphabet to be formed in a better shape that we see now. Thanks to Quran and Islam, Arabic was able to spread to the vast Islamic Empire from the Atlantic Ocean to the Indian Ocean with a relatively rapid speed and in a relatively short time.