Why should every part of God need a purpose? What does efficiency mean in the face of unlimited power (palpatine.jpeg), or simplicity in the face of omniscience? Why does God have a penis? Cause he wanted one I guess. They are nice for peeing too.
Peeing implies waste, which implies imperfection. If god were really God, his body would be 100% efficient and he wouldn't consume anything he didn't need.
Nah, in its internal logic, Chalcedonean Christianity doesn't have this problem. Jesus is defined as fully human and fully divine, and peeing is just part of being human.
Chalcedonian Christianity is also Nicene, i.e., Trinitarian: one being in three cosubstantial persons. They share the divine cock and balls, one would say.
Maybe the pee is not waste, but spontaneously created to God's will. " I want to pee, sure would be nice if I had a penis right now" - a diety that does not plan ahead, probably.