A sublime man will come and save humanity from oppression, injustic

And We have already written in the book [of Psalms] after the [previous] mention [in the Torah] that the Earth is inherited by My righteous servants.” (Holy Quran: 21, 105)

Witnessing that the aggressors of the world plunder and violate the rights of people, humanity should not think that this is the fate of the world, should not think that there is no way out and one should surrender. No, humanity should realize that this is a transitional condition. What belongs to this world and is natural to it is establishment of justice and the government of justice. And he (who is to establish justice) will come.
Ayatollah Khamenei (20/09/2005)

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Today, humanity’s mindset is ready to understand, realize and believe that a sublime man will come and save humanity from oppression and injustice, (that is) what all messengers of God have striven for, what the Holy Prophet of Islam (PBUH) has promised people: “… And He will relieve them of their burden and the fetters that they used to wear.” (Holy Quran: 7, 157)
Ayatollah Khamenei (23/11/2008)

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Despite all the bragging of the world arrogance and despite the financial, military, political and security attempts by the hegemonic powers and their cronies in this region and the entire Muslim world, the future undoubtedly belongs to Islam.
Ayatollah Khamenei (17/08/2015)