Asp, or Adder

Dangerous to travellers.
Genesis 49:17 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.
DESCRIBED AS

Venomous.
Job 20:14 Yet his meat in his bowels is turned, it is the gall of asps within him.

Job 20:16 He shall suck the poison of asps: the viper's tongue shall slay him.

Not to be charmed.
Psalm 58:5 Which will not hearken to the voice of charmers, charming never so wisely.

Of obstinate rejecters of God's Word.
Psalm 58:4-5 Their poison is like the poison of a serpent: they are like the deaf adder that stoppeth her ear; 5 Which will not hearken to the voice of charmers, charming never so wisely.

Of the enemies of God's people.
Psalm 91:13 Thou shalt tread upon the lion and adder: the young lion and the dragon shalt thou trample under feet.

(Venom of), of the speech of the wicked.
Psalm 140:3 They have sharpened their tongues like a serpent; adders' poison is under their lips. Selah.

Romans 3:13 Their throat is an open sepulchre; with their tongues they have used deceit; the poison of asps is under their lips:

(Venom of), of injurious effects of wine.
Deuteronomy 32:33 Their wine is the poison of dragons, and the cruel venom of asps.

Proverbs 23:32 At the last it biteth like a serpent, and stingeth like an adder.
(Deprived of its venom), of the effects of conversion.
Isaiah 11:8-9 And the sucking child shall play on the hole of the asp, and the weaned child shall put his hand on the cockatrice' den. 9 They shall not hurt nor destroy in all my holy mountain: for the earth shall be full of the knowledge of the LORD, as the waters cover the sea.