5then I will set my face against that man and against his clan and will cut them off from among their people, him and all who follow him in whoring after Molech.
The term clan (mišpāḥāh) refers to an extended grouping of people, not just the nuclear family.
5 then I will set my face against that man and against his clan and will cut them off from among their people, him and all who follow him in whoring after Molech.