Verses with the word poison in the Old Testament (6 verses):

Deuteronomy 32:24
They shall be burnt with hunger, and devoured with burning heat, and with bitter destruction: I will also send the teeth of beasts upon them, with the poison of serpents of the dust.

Deuteronomy 32:33
Their wine is the poison of dragons, and the cruel venom of asps.

Job 6:4
For the arrows of the Almighty are within me, the poison whereof drinketh up my spirit: the terrors of God do set themselves in array against me.

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

Psalms 58:4
Their poison is like the poison of a serpent: they are like the deaf adder that stoppeth her ear;

Psalms 140:3
They have sharpened their tongues like a serpent; adders' poison is under their lips. Selah.