Fear is the antithesis of spiritual formation, because spiritual formation is ultimately about becoming more like God, and God is love. The spirit that he gives us is one of love, not fear (2 Tim 1:7).
The Apostle John writes that perfect love (John 15:13; 1 John 4:18) casts out fear. Fear keeps us from abandoning ourselves to Jesus, yet, because of what he has done our behalf we no longer have any cause for fear, even as we share in his suffering (Phil. 3:10). We are not afraid; instead we have great hope and confidence (2 Corinthians 4:16-18).
The Good News of Jesus means we are now free from all kinds fear, to live in faith, hope, and love.