Verses with the word serpent in the New Testament (8 verses):

Matthew 7:10
Or if he ask a fish, will he give him a serpent?

Luke 11:11
If a son shall ask bread of any of you that is a father, will he give him a stone? or if he ask a fish, will he for a fish give him a serpent?

John 3:14
And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up:

2 Corinthians 11:3
But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ.

Revelation 12:9
And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.

Revelation 12:14
And to the woman were given two wings of a great eagle, that she might fly into the wilderness, into her place, where she is nourished for a time, and times, and half a time, from the face of the serpent.

Revelation 12:15
And the serpent cast out of his mouth water as a flood after the woman, that he might cause her to be carried away of the flood.

Revelation 20:2
And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years,