Why would Paul use the imagery of a bride to describe the relationship Jesus has with the church? Paul is describing the closeness of Jesus to the church. He is speaking of the preciousness and purity of the church. We need to view the church as precious an not simply a collection or assembly of individuals.
Saul failed to trust God. This cost him dearly. As a church we need to trust God as we walk through the doors He has opened before us.