Bible Verses About Serpents: Of enemies who harass and destroy

Rejoice not, O Philistia, all of thee, because the rod that smote thee is broken; for out of the serpent’s root shall come forth an adder, and his fruit shall be a fiery flying serpent.

For, behold, I will send serpents, adders, among you, which will not be charmed; and they shall bite you, saith Jehovah.