Deuteronomy 32:33

Their wine is the poison of dragons, And the cruel venom of vipers.

Psalm 58:4

Their poison is like the poison of a serpent: they are like the deaf adder which stoppeth her ear;

Job 20:14-16

His food is turned in his bowels; it is the gall of asps within him.

Psalm 140:3

They sharpen their tongues like a serpent; adders' poison is under their lips. Selah.

Jeremiah 8:14

Why do we sit still? Assemble yourselves, and let us enter into the fenced cities, and let us be silent there: for Jehovah our God hath put us to silence, and given us water of gall to drink, because we have sinned against Jehovah.

Romans 3:13

their throat is an open sepulchre; with their tongues they have used deceit; asps' poison is under their lips:

Treasury of Scripture Knowledge

Summary

Their wine is the poison of dragons, and the cruel venom of asps.

Bible References

The poison

Job 20:14
His food is turned in his bowels; it is the gall of asps within him.
Psalm 58:4
Their poison is like the poison of a serpent: they are like the deaf adder which stoppeth her ear;
Psalm 140:3
They sharpen their tongues like a serpent; adders' poison is under their lips. Selah.
Jeremiah 8:14
Why do we sit still? Assemble yourselves, and let us enter into the fenced cities, and let us be silent there: for Jehovah our God hath put us to silence, and given us water of gall to drink, because we have sinned against Jehovah.