Sonnet
New member
That's the part Jesus' "analogy" was focused on....their lack of faith.
There, your post has been answered.
Just as Moses lifted up the snake in the wilderness, so the Son of Man must be lifted up, that everyone who believes may have eternal life in him.
Nothing about lack of faith but everything about a raised bronze serpent which Jesus equates with His crucifixion which grants eternal life for those that believe. The exact parallel in the OT story is dying Israelites given a life cure if they look.
Prove that unbitten Israelites are relevant in the analogy and you prove that some of mankind is sinless and in no need of Jesus. Those unbitten Israelites did not need the bronze serpent.