Num 21: 8 And the Lord said unto Moses, Make thee a fiery serpent, and set it upon a pole: and it shall come to pass, that every one that is bitten, when he looketh upon it, shall live.
John 3:14
And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up:
John 12:32
And I, if I be lifted up from the earth, will draw all men unto me.
Meditation on the passion sufferings and death of Christ produces fruits of repentance and true sorrow for sin. Thanks