Revelation 1:17

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

Revelation 15:4

Who should not fear thee, O Lord, and glorify thy name? for thou alone art perfect. Surely all nations shall come and worship before thee, because thy righteous 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

Revelation 1:17
And when I saw him, I fell down at his feet, as dead; and he laid his right hand upon me, and said, Fear not; I am the First and the Last;
Revelation 15:4
Who should not fear thee, O Lord, and glorify thy name? for thou alone art perfect. Surely all nations shall come and worship before thee, because thy righteous judgments are made manifest.