Hebrews 12:28-29

Therefore we receiving a kingdom which cannot be shaken, let us hold fast the grace, whereby we may serve God acceptably, with reverence and godly fear.

Revelation 1:17

And when I saw him, I fell at his feet as dead: and he laid his right-hand upon me, saying, Fear not, I am the First and the Last,

Revelation 15:4

Who would not fear thee, O Lord, and glorify thy name? For thou only art gracious: for all the nations shall come and worship before thee: for thy judgments are made manifest.

Treasury of Scripture Knowledge

Summary

But David could not go before it to inquire of God: for he was afraid because of the sword of the angel of the LORD.

Bible References

He was afraid

Hebrews 12:28
Therefore we receiving a kingdom which cannot be shaken, let us hold fast the grace, whereby we may serve God acceptably, with reverence and godly fear.
Revelation 1:17
And when I saw him, I fell at his feet as dead: and he laid his right-hand upon me, saying, Fear not, I am the First and the Last,
Revelation 15:4
Who would not fear thee, O Lord, and glorify thy name? For thou only art gracious: for all the nations shall come and worship before thee: for thy judgments are made manifest.