Philippians 1:9-11 tells us we should never stop growing in love and discernment. The passage goes on to tell us this is important so we can approve the good things and stay away from the bad. The goal of which is to be blameless when Christ returns. All of us want to be blameless before Christ, and none of us want to be caught unaware when He returns.
If you should fear anything in life, fear what Christ’s return will find you doing. Now, if we live our lives wholly devoted to Him, we won’t have to worry about it. If we let compromise come into our lives, who knows what Jesus may find us doing. We only get one shot to do this right.