Fear of God is huge.

The correct fear of God is terror. Extreme fear and dread of displeasing God and provoking Him to wrath.

Psalm 88:15-17 NKJV

[15] I have been afflicted and ready to die from my youth; I suffer Your terrors; I am distraught. [16] Your fierce wrath has gone over me; Your terrors have cut me off.

[17] They came around me all day long like water; They engulfed me altogether.

2 Corinthians 5:9-11A KJV

[9] Wherefore we labour, that, whether present or absent, we may be accepted of him.

[10] For we must all appear before the judgment seat of Christ; that every one may receive the things done in his body, according to that he hath done, whether it be good or bad.

[11] Knowing therefore the terror of the Lord, we persuade men;