Tashbih here refers to projecting human bodily or family relationships onto God. Some were said to regard angels as God’s daughters or to imagine intercession as though a heavenly court operated by the necessary rules of an earthly court.
The discussion also criticizes attributing creaturely bodily limits and perceptions to the Creator.
The problem is not that language can never describe God; it is treating human embodiment and social dependence as the standard by which divine reality must be measured. The Qur’anic response challenges those assumptions.