If the most Praised One stopped testifying for the...
If the most Praised One stopped testifying for the truthfulness of the Prophet (peace with him and his progeny), the reversal would then be binding. For this reason, there has to be a definitive evidence behind the Sharia and the revelation testifying to His being truthful and does not lie, the most Praised One that He is. There is another evidence to which some Mutazilites pointed out.
It is summed up by saying that His lying contradicts the interest of the world because if lies become possible in the speech of the most Exalted One, there will be a removal of faith in His telling us about the conditions of the life hereafter, and this means abandoning countless benefits. What is the most fitting is obligatory on Him, the most Exalted One, and He cannot violate it.
What is meant by its being obligatory is that reason realizes that His position, the most Praised One, in this regard necessitates choosing what is best and leaving everything else.[^1] But the evidence is based on the principle set by the fairness criterion of realizing what is good and what is ugly while discarding all things that are incidental or obstacles.
It is then that what is best and most fit is realized, or what is suitable and what is not, and it will be realized that what is best and what is good must be preferred over others. For this reason, there can be no other evidence. All this applies if we say that His speech is one of the operative attributes. But if we interpret it as being self-speech, as the Asharis have advocated, as you have already come to know, it is not outside the frame of knowledge, freewill, hatred, etc.
At that juncture, the truth of His speech will mean that His knowledge is true, and the truth of knowledge cannot be interpreted by any way other than agreeing with the reality. As for the truthfulness of the freewill and of hatred, he does not provide a reason for them. At any rate, truthfulness according to the Asharis will then be one of the self-attributes, not the operative ones. [^1]: Sharh al-Qawshaji, p. 320. Previous…