Isaiah 11:8

And {an infant} shall play over a serpent's hole, and {a toddler} shall put his hand on a viper's hole.

Psalm 140:3

They sharpen their tongue as [sharp as] a snake's; [the] venom of a viper [is] under their lips. Selah

Isaiah 59:5

they hatch viper eggs, and they weave a spider web. One who eats their eggs dies, and that which is pressed is hatched [as] a serpent.

Treasury of Scripture Knowledge

Summary

And the sucking child shall play on the hole of the asp, and the weaned child shall put his hand on the cockatrice' den.

Cockatrice'

Bible References

Cockatrice'

Isaiah 59:5
they hatch viper eggs, and they weave a spider web. One who eats their eggs dies, and that which is pressed is hatched [as] a serpent.
Psalm 140:3
They sharpen their tongue as [sharp as] a snake's; [the] venom of a viper [is] under their lips. Selah

General references

Genesis 7:9
{two of each} went to Noah, into the ark, male and female, as God had commanded Noah.
Acts 10:12
in which were all the four-footed animals and reptiles of the earth and birds of the sky.
Galatians 5:15
But if you bite and devour one another, watch out [that] you are not consumed by one another.