'Poisonous' in the Bible

Just so every good tree produces good fruit, but a poisonous tree produces bad fruit.

A good tree cannot bear bad fruit, nor a poisonous tree good fruit.

"Either grant the tree to be wholesome and its fruit wholesome, or the tree poisonous and its fruit poisonous; for the tree is known by its fruit.

Paul gathered a bundle of sticks and put it on the fire. A poisonous snake was forced out by the heat and attached itself to Paul's hand.

Their throats are open graves. With their tongues they deceive. The venom of poisonous snakes is under their lips.

We must not tempt the Lord [that is, test His patience, question His purpose or exploit His goodness], as some of them did—and they were killed by serpents.

And never again will the light of a lamp shine in you, and never again will the voice of the bridegroom and bride be heard in you; for your merchants were the great and prominent men of the earth, because all the nations were deceived and misled by your sorcery [your magic spells and poisonous charm].