'Viper' in the Bible

In the end, it bites like a snake, and poisons like a viper.

The burden of the animals of the South. Through the land of trouble and anguish, of the lioness and the lion, the viper and fiery flying serpent, they carry their riches on the shoulders of young donkeys, and their treasures on the humps of camels, to an unprofitable people.

They hatch adders' eggs, and weave the spider's web: he who eats of their eggs dies; and that which is crushed breaks out into a viper.