Luke 11:12

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

Luke 10:19

"I have given you power to tread serpents and scorpions underfoot, and to trample on all the power of the Enemy; and in no case shall anything do you harm.

Revelation 9:10

They had tails like those of scorpions, and also stings; and in their tails lay their power of injuring mankind for five months.

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
"I have given you power to tread serpents and scorpions underfoot, and to trample on all the power of the Enemy; and in no case shall anything do you harm.
Revelation 9:10
They had tails like those of scorpions, and also stings; and in their tails lay their power of injuring mankind for five months.

General references

Matthew 7:9
What man is there among you, who if his son shall ask him for bread will offer him a stone?