Love this quote by A.W. Pink:
"The fear of the Lord is the beginning of wisdom" (Prov. 1:7). Happy the soul that has been awed by a view of God's majesty, that has had a vision of God's awful greatness, His ineffable holiness, His perfect righteousness, His irresistible power, His sovereign grace. Does someone say, "But it is only the unsaved, those outside of Christ, who need to fear God"? Then the sufficient answer is that the saved, those who are in Christ, are admonished to work out their own salvation with "fear and trembling." Time was when it was the general custom to speak of a believer as a "God-fearing man." That such an appellation has become nearly extinct only serves to show whither we have drifted. Nevertheless, it still stands written, "Like as a father pitieth his children, so the Lord pitieth them that fear Him" (Psalm 103:13).

When we speak of godly fear, of course we do not mean a servile fear, such as prevails among the heathen in connection with their gods. No, we mean that spirit which Jehovah is pledged to bless, that spirit to which the prophet referred when he said, "To this man will I (the Lord) look, even to him that is poor and of a contrite spirit, and trembleth at my word" (Isa. 66:2). It was this the apostle had in view when he wrote, "Honor all men. Love the brotherhood. Fear God. Honor the king" (I Pet: 2:17). And nothing will foster this godly fear like a recognition of the Sovereign Majesty of God. - A.W. Pink -