The fear of man lays a snare, but whoever trusts in YHVH is safe.
Proverbs 29:25

Fear is faith in evil. When we fear that something bad will happen, it often becomes a self-fulfilling prophecy because we begin acting as if there is no way to stop it. Real faith in God's promises allays fear and brings life because our actions follow our faith. If we believe that good will come, we begin acting as if good is coming.