the serpent

Psalm 58:4, 5
Their venom is like the poison of a serpent, like a cobra that shuts its ears, . . .

Jeremiah 8:17
"For behold, I will send snakes among you, poisonous vipers that cannot be charmed, and they will bite you, " declares the LORD.

babbler

Psalm 52:2
Your tongue devises destruction like a sharpened razor, O worker of deceit.

Psalm 64:3
who sharpen their tongues like swords and aim their bitter words like arrows,

Proverbs 18:21
Life and death are in the power of the tongue, and those who love it will eat its fruit.

James 3:6
The tongue also is a fire, a world of wickedness among the parts of the body. It pollutes the whole person, sets the course of his life on fire, and is itself set on fire by hell.