by St Gregory of Nyssa
In Exodus, the manna from Heaven prefigured the virgin birth, being reaped where it was not sown.
The tabernacle made without hands is Christ.
Hair is a symbol of death. It has no feeling. It is not alive.
Corruption is the dissolution of unity within complexity. As a simple being, God is incorruptible. His unity cannot decompose because He is not complex.
The serpent is a symbol of sin.