Your affinity or need for serpents isn't mine. I'm unaware of 'must having' any serpents. Jesus wasn't equated with the serpent. Its the method by which faith was used for deliverance that would run a parallel. The precedent was set for that type of faith-activated intercession with the wilderness story. The point was not to equate Jesus with a serpent.
In the wilderness, they asked Moses to pray for them--they didn't pray themselves. (Related term: Intercession, mediation.)
Also in one thread that you put the Isaacs (the church) to death and yet now you say Isaac represents "the spiritual nature". Puzzling.