What are the benefits of paying Zakat which are mentioned in the Qur’an?

Paying Zakat has been associated to several physical and metaphysical benefits in the Quran. Some of them are as follows:

1) The means to attain Allah’s mercy “My Mercy extends to all things. That (Mercy) I shall ordain for those who have God-consciousness and give their Zakat and those who believe in Our Signs.” (Sūrah Al-A`rāf 7:156).

2) A precondition to obtain Allah’s help “Allah will certainly aid those who aid His (cause); for verily Allah is Full of Strength, Exalted in Might, (able to enforce His Will). (They are) those who, if We establish them in the land, establish regular prayer and give their Zakat, enjoin the right and forbid wrong: with Allah rests the outcome of all affairs.” (Sūrah Al-Ḥajj 22:40-41).

3) A sign of brotherhood in religion “But (even so), if they repent, establish regular prayers, and give their Zakat, they are your brethren in Faith.” (Sūrah Al-Taubah 9:11).

4) A distinctive feature of the faithful community “The Believers, men and women, are protectors one of another: they enjoin what is just and forbid what is evil: they observe regular prayers, pay their Zakat and obey Allah and His Messenger. On them will Allah pour His Mercy: for Allah is Exalted in power, Wise.” (Sūrah Al-Taubah 9:71).

5) A distinctive quality of the believers who go to and maintain mosques “The mosques of Allah shall be visited and maintained by such as believe in Allah and the Last Day, establish regular prayers, and pay their Zakat and fear none (at all) except Allah.” (Sūrah Al-Taubah 9:18).

6) A distinctive quality of the true believers: “Who are active in paying Zakat.” (Sūrah Al-Mu’minūn 23:4). And as important as Ṣalāh “And establish the prayer and pay the Zakat and bow (in prayer) with those who bow.” (Al-Baqarah: 43)