What is the meaning of the noble verse (Only those who have knowledge among His slaves fear Allah), and is it to be understood from it that those who do not have knowledge do not fear Allah?

The summary of the noble verse's interpretation is that none truly fear Allah except those who are knowledgeable of His recited and cosmic signs. It does not mean that the common people do not fear Allah; rather, every person fears Allah to the extent of their knowledge and strength of faith.