Taken as a carnal commandment, this idea of a first born is understood as literally the child, typically the first son. However, in Kabbalah this would be one’s first desire. In Kabbalah males represent the will to bestow and females the desire to receive. Any instruction given in regards to the first born requires that our first desire to bestow and receive be for and to YHVH. Our desires grow in strength as represented by earth (basic) plants (low), animals (mid) people (greater) and family members (greatest).