Luke 11:12

"Or if he asks for an egg, will offer him a scorpion?

Luke 10:19

"Behold, I give you the power to tread upon serpents and scorpions, and to trample on all the power of the enemy. In no case shall anything do you harm.

Revelation 9:10

And they have tails like scorpions, and stings, and their power to torture men five months was in their tails.

Treasury of Scripture Knowledge

Summary

Or if he shall ask an egg, will he offer him a scorpion?

General references

Bible References

A scorpion

Luke 10:19
"Behold, I give you the power to tread upon serpents and scorpions, and to trample on all the power of the enemy. In no case shall anything do you harm.
Revelation 9:10
And they have tails like scorpions, and stings, and their power to torture men five months was in their tails.

General references

Matthew 7:9
"What man of you is there who, when his son asks a loaf, will give him a stone?