How did the Arabic language spread?

The religion came down in Arabic which has greatly revived the Arabic language, where the entry of religion isn’t only for Arabs, but the religion has guided many peoples all over the world, and this has contributed significantly to the spread of the Arabic language, and it was used in reading Quran and prayer, where prayer is not permissible except by it, which helped to spread among also the queues of non-Arab Muslims.
After that, the Arab trade contributed to its spread for the countries that Islam had not yet reached, and then the writers, poets and thinkers were responsible for publishing it, and to inform the greatest number of the people all over the world about the Arabic language by using them in their ideas and poetic poems which made many people wants to learn a lot about it.
In the end, there is no doubt that the Arabic language has a great importance, as it builds many ways of communication among the people who speaks in Arabic, especially between the Arab people and each other and is the main entrance through which we can learn the Quran and the teachings of the Islamic religion and without them we can’t pray which it is the most important thing in Islam, so it is undoubtedly an immortal language that will never disappear.