The fear of God is a many-faceted jewel of Biblical truth.
One of those facets is seen in the Book of Proverbs in the simple sentence:
“The fear of the Lord is the beginning of wisdom” (Proverbs. 9:10).
The beginning of new life in Christ is the beginning of the fear of the Lord (Ps.130:4).
The beginning of the fear of the Lord is the beginning of wisdom (Pro.1:7). 
The beginning of wisdom is the beginning of a life lived in harmony with all of God’s cause-and-effect systems: natural, physical, social, and moral-especially moral.
There are only two kinds of people in this world: those who live in willing harmony with God’s moral law and those who live in willing rejection of God’s moral law.
The first kind are considered the Wise.
The other kind are called “fools” (Ps.14:1).
from The Fear of God a forgotten doctrine p.3 Arnold L. Frank (1931-2015)