Psalms 140:3 They have sharpened their tongues like a serpent; adders' poison is under their lips. Selah. (KJV ASV DBY)
Isaiah 30:6 The word about the Beasts of the South. Through the land of trouble and grief, the land of the she-lion and the voice of the lion, of the snake and the burning winged snake, they take their wealth on the backs of young asses, and their stores on camels, to a people in whom is no profit. (See NIV)
Isaiah 59:5 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. (WEB ASV NAS RSV)
Jeremiah 8:17 For, behold, I will send serpents, adders, among you, which will not be charmed; and they shall bite you, says Yahweh. (WEB ASV NAS RSV)