It is in this case that a person attains divine wishes by...
It is in this case that a person attains divine wishes by means of using his tongue and speaking. In some instances, the advisability and desirability of words has to be distinguished by the help of the divine law of Islam, otherwise a person himself does not know the bounds and characteristics of desirable talk. In a lot of instances one can discern the goodness of his speech by means of the intellect and comprehend whether what he says is desirable, incumbent or recommended.
In case man has the intention of pleasing none but Allah, his words are considered to be worship. An example is when one wants to defend an oppressed man by means of his speech or exact justice on behalf of an oppressed person by taking an oppressor to task. This instance is a case of “intellectual independence” wherein the intellect is not dependent on the dictates of divine law.
If no divine law had ever been inspired to mankind, man would still have comprehended that defending the weak and oppressed was incumbent and if one were able to defend the oppressed by means of speaking, then that would be pleasing and gratifying to Allah. Even if one were not able to fully comprehend the obligation of speaking out in defense of the weak and oppressed, he would at least conceive its goodness and desirability.
We all know that it is very good and desirable to stroke the head of an orphan and make him happy and that abating the sorrow and sadness of a believing brother is good. In such circumstances, man’s deeds are considered to be worship if he makes the intention to please Allah.
In contrast with these situations, in other instances we may not realize the limits and cannot distinguish the realm of the permissibility of certain actions and, like divine injunctions, the lawmaker has to explain them to us. Even though the intellect may conceive the generalities, the characteristics, conditions and limits of those instances are determined by divine law and they are placed at our disposal by means of inference from the sources of Islamic jurisprudence.
Therefore, in such instances we must follow divine injunctions. There are also instances which we know are not pleasing to Allah. Acting upon such deeds is not correct, man sins if he does these forbidden actions, he will be punished and because these deeds are not pleasing to Allah, they cannot be discharged with the intention of worship.