Easton's Bible Dictionary In Job 20:16, Isaiah 30:6; 59:5, the Hebrews word eph'eh is thus rendered. The Hebrew word, however, probably denotes a species of poisonous serpents known by the Arabic name of `el ephah. Tristram has identified it with the sand viper, a species of small size common in sandy regions, and frequently found under stones by the shores of the Dead Sea. It is rapid in its movements, and highly poisonous. In the New Testament echidne is used (Matthew 3:7; 12:34; 23:33) for any poisonous snake. The viper mentioned in Acts 28:3 was probably the vipera aspis, or the Mediterranean viper. (see ADDER.) Noah Webster's Dictionary 1. (a.) Any one of numerous species of Old World venomous makes belonging to Vipera, Clotho, Daboia, and other genera of the family Viperidae. 2. (n.) A dangerous, treacherous, or malignant person. Int. Standard Bible Encyclopedia VIPER vi'-per ('eph`eh (Job 20:16 Isaiah 30:6; Isaiah 59:5); echidna (Matthew 3:7 = Luke 3:7 Matthew 12:34; Matthew 23:33 Acts 28:3)): Several vipers are found in Palestine, but it is not certain that 'eph`eh referred definitely to any of them. See SERPENT.

Multi-Version Concordance Viper (8 Occurrences) Acts 28:3 But when Paul had gathered a bundle of sticks and laid them on the fire, a viper came out because of the heat, and fastened on his hand. (WEB KJV WEY ASV DBY WBS YLT NAS RSV NIV) Genesis 49:17 Dan will be a serpent in the way, an adder in the path, That bites the horse's heels, so that his rider falls backward. (See RSV NIV) Job 20:16 He shall suck cobra venom. The viper's tongue shall kill him. (WEB KJV JPS ASV DBY WBS YLT NAS RSV) Psalms 140:3 They have sharpened their tongues like a serpent. Viper's poison is under their lips. Selah. (WEB JPS NAS RSV NIV) Proverbs 23:32 In the end, it bites like a snake, and poisons like a viper. (WEB NAS NIV) Isaiah 14:29 Rejoice not thou, Philistia, all of thee, because the rod that smote thee is broken; for out of the serpent's root shall come forth a viper, and his fruit shall be a fiery flying serpent. (DBY YLT NAS NIV) Isaiah 30:6 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. (WEB KJV JPS ASV DBY WBS YLT NAS RSV) 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 KJV JPS ASV DBY WBS YLT RSV NIV)