“Thou shalt tread upon the lion and adder: the young lion and the dragon shalt thou trample under feet.”
Bible
“It is the bright day that brings forth the adder, and that craves wary walking.”
William Shakespeare
“At the last it biteth like a serpent, and stingeth like an adder.”
“Dan shall be a serpent by the way, an adder in the path, that biteth the horse heels, so that his rider shall fall backward.”
“They have sharpened their tongues like a serpent; adders' poison is under their lips. Selah.”
“Their poison is like the poison of a serpent: they are like the deaf adder that stoppeth her ear; / Which will not hearken to the voice of charmers, charming never so wisely.”
“In shallow holes moles make fools of dragons”
Proverb