Luke 9:54-55

So when the disciples James and John saw this, they said, "Lord, will you have us bid fire come down from heaven and consume them?"

John 16:2

They will excommunicate you; indeed the time is coming when anyone who kills you will imagine he is performing a service to God.

Romans 10:2

I can vouch for their zeal for God; only, it is not zeal with knowledge.

Galatians 4:17

These men make much of you ??yes, but for dishonest ends; they want to debar you from us, so that you may make much of them.

Treasury of Scripture Knowledge

Summary

And the king called the Gibeonites, and said unto them; (now the Gibeonites were not of the children of Israel, but of the remnant of the Amorites; and the children of Israel had sworn unto them: and Saul sought to slay them in his zeal to the children of Israel and Judah.)

Bible References

In his zeal

Luke 9:54
So when the disciples James and John saw this, they said, "Lord, will you have us bid fire come down from heaven and consume them?"
John 16:2
They will excommunicate you; indeed the time is coming when anyone who kills you will imagine he is performing a service to God.
Romans 10:2
I can vouch for their zeal for God; only, it is not zeal with knowledge.
Galatians 4:17
These men make much of you ??yes, but for dishonest ends; they want to debar you from us, so that you may make much of them.