While on the cross, Jesus is giving her mother (the church) to his beloved disciple (Paul?).
The genesiac Serpent, while on the tree, is giving her gift to Eve and Adam.
I wonder if the idea is found in nuce in previous gospels (*Ev or Mark).
In Mark Jesus is silent on the cross: hardly he is giving something as gift.
In *Ev, Jesus is addressing only the good thief and not the evil thief. Which makes ipso facto Jesus the tree of the good and evil and accordingly the genesiac Serpent found in it.
A Serpent who is silent is a Serpent who is reluctant to give the gnosis as gift. Possibly in this sense the silence of the crucified Jesus in Mark may be interpreted, even if I am skeptical about an anti-demiurgist reading of Mark (given the positive light about John the Baptist in it).