On that account, We decreed to the Children of Israel the Eternal Moral Ordinance for all humanity (2:178) that whoever kills a human being, unless it is in the course of justice for murder or bloody crimes on the earth, it shall be as if he killed all mankind. And whoever saves one life it would be as if he saved the life of all mankind. Our Messengers came to people with clear Truth, yet many of them continued to transgress in the earth.