Terminologically, injustice is to put a thing in an inappropriate place. Polytheism, hence, is grave injustice, because it is replaced with monotheism. Conventionally, injustice stands for the seizure of rights and the words and deeds of hostility against others, such as revilement, backbiting, and confiscation of property, crimes of beating or murder, and the like forms of wrongdoing.
Injustice, however, is one of the bad characteristics that are deep-rooted in most of the mentalities. All over history, humankind suffered various kinds of tragedies that made life seem depressing. It, therefore, is the comprehension of sins, the source of evils, and incentive of corruption.
Allah says in the Holy Quran:
“The unjust will certainly have no happiness. (6:21)”
“Allah does not guide the unjust. (6:144)”
“Allah does not love the unjust. (3:57)”
“The unjust will face a painful punishment. (14:22)”
“We destroyed certain generations who lived before you because of their injustice. (10:13)”
“Do not think that Allah is unaware of what the unjust people do. (14:42)”
“(On the Day of Judgment) to redeem oneself of one’s injustice, one would gladly spend the wealth of the whole earth if it were possible. On seeing the torment one will try to hide his regret. They will all be judged fairly and no wrong will be done to them. (10:54)”
