There are two very different kinds of fear: First, there is the fear of the Lord (Proverbs 9:10). Secondly, there is the fear of man (Proverbs 29:25). What you fear tells your story.
The fear of the Lord comes from a right view of God, is rooted in faith, and evidenced in love (Galatians 5:6). The fear of man comes from an absent or flawed view of God, is rooted in unbelief, and cannot please God (Galatians 3:2,21, 22).
“By faith” has always been the way to righteousness. In Genesis 15:6 we read, “Abraham believed God and it was credited to him as righteousness.” This is true for both justification and sanctification. God does not change the means after we are saved. Sanctification is by grace, through faith as well, and will bear the fruit of righteousness. More