"And unto man he said, Behold the fear of the Lord, that is wisdom; and to depart from evil is understanding." Job 28:28
Fear of and reverence for God are fundamental to the believer's relationship with God. Fearing the Lord makes us concerned and alert that we do not offend our holy God. Without this foundation, no true wisdom exists and no redemptive experience will stand the test of time and temptation.
True fear of God and true Biblical wisdom cause us to turn from evil and result in the "comfort of the Holy Ghost." (Acts 9:31) To fear God and yet continue in sin is a moral impossibility. the soul that acclaims God's majesty and recognizes His opposition to evil will be characterized by an earnest, decisive and total endeavor to separate from sin and follow God's Word. (From the Life in the Spirit Study Bible commentary.)