Luke 12:5

I will show you of whom you should be afraid. Be afraid of him who, after killing you, has the power to fling you into the Pit. Yes, I say, be afraid of him.

Revelation 15:4

Who will not reverence and praise thy Name, O Lord? Thou alone art holy! All nations will come and worship before thee, for thy judgments have become manifest.'

Treasury of Scripture Knowledge

Summary

For the LORD is great, and greatly to be praised: he is to be feared above all gods.

Bible References

He is

Luke 12:5
I will show you of whom you should be afraid. Be afraid of him who, after killing you, has the power to fling you into the Pit. Yes, I say, be afraid of him.
Revelation 15:4
Who will not reverence and praise thy Name, O Lord? Thou alone art holy! All nations will come and worship before thee, for thy judgments have become manifest.'