It says...

It says, in effect, “O man hear to what your conscience and mind clearly tell you, and in matters of doctrine do not follow others blindly. Do not take a belief as a crterion for your actions or adopt it until you are quite sure it is correct.” Another verse states: “The most evil of beasts in God’s sight are the deaf, dumb, those who do not reason.” (8:22).

The wounds ‘deaf’ and ‘dumb’ here refer not to persons without the sense of physical hearing or the power of speech but to those who do not use their minds, the ones who do not think properly about matters to belief. Of such persons another verse tells us, “ They have hearts, but do not…