The sages taught that God created no creature without a purpose — not the serpent, not the spider, not the scorpion. The story preserved under the title "Saved from Serpent" illustrates this principle with a tale of unexpected deliverance.
A righteous man was walking through a dangerous place when he encountered a venomous serpent. Instead of fleeing, he observed it carefully. The serpent, rather than attacking, moved in a deliberate pattern — as though guiding the man away from a path he had been about to take.
The man followed the serpent's lead and was saved from a greater danger that lay ahead — bandits in ambush, a collapsing bridge, or some other lethal trap that the serpent could see and the man could not. The very creature that seemed most threatening proved to be his savior.
Pirkei DeRabbi Eliezer (Chapter 49) and various midrash (rabbinic interpretive commentary)ic sources develop this theme extensively. Every dangerous creature in creation serves a purpose in God's plan. The serpent that terrifies you today may be the instrument of your rescue tomorrow. The spider whose web disgusts you may one day spin a web that hides you from your enemies — as happened to King David in the cave.
The lesson extended beyond animals. The sages taught that even the aspects of creation that seem harmful, ugly, or pointless have hidden functions. God wastes nothing. The world is a machine of infinite complexity, and every part — even the parts that bite — is essential. The man who was saved by a serpent understood this. His fear became gratitude, and his gratitude became wisdom.