If the criterion is reason, then what benefit does sending prophets have?
3:46 Playlist: https://www.youtube.com/playlist?list=PL3hRi89YhwZab1XoxgaK4kCw4VjGF8qfL
In the third issue of this series of discussions, we explained that to distinguish right from wrong, we have no foundation other than reason, and if we rely on and trust something else, it is with the permission and judgment of reason. There we said that what is defective is our awareness and information, not the power that identifies and evaluates reliable sources of knowledge.
We don't know many truths; but God has given us reason so that through it we extract valid information and through this path reach more science and knowledge. That we take seriously the possibility of sending a message from God is also because we know that if a word is truly from God, it contains the most reliable awareness.
Therefore, if the teachings of someone who claims prophethood were compatible with reason, we consider his claim examinable; and if his characteristics and the content of his message create this confidence in the heart that he is God's messenger, we believe in him and learn from him the truths whose secrets and aspects we don't know.
Logical arguments tell us that God knows all the secrets of existence and the ways of human perfection and happiness, and if He sends a message and command, even if we don't know its wisdom, we must accept it with soul and heart and obey; but what's important is that we have correctly identified God's message so we don't attribute irrational content to God.