It was a pretty obscure passage in Numbers. God had sent snakes to punish Israel but had Moses make a bronze serpent and any who were not that looked upon the serpent would live.That is a bit pathetic. Why is Christ represented by a brazen serpent, the very emblem or epitome of sin and rebellion against God (Revelation 12:3)?
It is sad you find this so pathetic. Jesus applies this to Himself (I just quoted the verse) saying as Moses lifted up the serpent so also will He be lifted up that all who believe will live.