from these the fullest sources of bliss and joy. He has made the impure words, deeds, and character of the others their very torment and pain, and created (1) for them from these the greatest sources of punishment (2) and suffering. This manifests His consummate wisdom and all-conquering might, so that He may show His servants the perfection of His lordship, wisdom, knowledge, justice, and mercy, and make His enemies know that it was they who were liars and fabricators, not His righteous, truthful messengers. Allah Most High says:
“They swear by Allah their strongest oaths that Allah will not resurrect anyone who dies. But yes—it is a promise binding upon Him in truth, though most people do not know (38)—so that He may make clear to them that over which they differ, and so that those who disbelieve may know that they were” [al-Nahl: 38–39].
The point is that Allah Most High has given blessedness and wretchedness distinguishing signs by which they can be recognized. The blessed person is pure: only what is pure befits him (3); he does only what is pure, only what is pure proceeds from him, and he involves himself only with what is pure. The wretched person is impure: only what is impure befits him; he does only what is impure, and only what is impure proceeds from him. Thus, impurity pours forth from his heart onto his tongue and limbs. What is pure pours forth from his pure heart (4) onto his tongue and limbs. A person may contain both elements, and he belongs to whichever predominates in him. If Allah intends good for him, He purifies him of the impure element before he returns to Him, so that he comes to Him on the day of meeting already purified and has no need to be purified by the Fire,