Hebrews 12:28-29

Therefore, let us, who have received a kingdom that cannot be shaken, be thankful, and so offer acceptable worship to God, with awe and reverence.

Revelation 1:17

And, when I saw him, I fell at his feet like one dead. He laid his hand on me and said-- 'Do not be afraid. I am the First and the Last,

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

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, let us, who have received a kingdom that cannot be shaken, be thankful, and so offer acceptable worship to God, with awe and reverence.
Revelation 1:17
And, when I saw him, I fell at his feet like one dead. He laid his hand on me and said-- 'Do not be afraid. I am the First and the Last,
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.'