Luke 9:54-55

And the disciples James and John, seeing, said, Lord, do you wish that we may command fire to descend from heaven and consume them?

John 16:2

They will put you out of the synagogues: but the hour is coming, that every one killing you may think he is offering service to God.

Romans 10:2

For I testify to them, that they have a zeal of God, but not according to perfect knowledge;

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
And the disciples James and John, seeing, said, Lord, do you wish that we may command fire to descend from heaven and consume them?
John 16:2
They will put you out of the synagogues: but the hour is coming, that every one killing you may think he is offering service to God.
Romans 10:2
For I testify to them, that they have a zeal of God, but not according to perfect knowledge;