devotion to the single vow of baptism, reflects the respect one pays God in the appeal to baptism in the struggle of life between the Spirit and the flesh. Luther, when continuously pressed into unbelief and despair, appealed to the concrete act of baptism as a passive reception of justified life (vita passiva). The third power of faith and possibly the most profound for Luther is the power of marital union to Christ.198 In faith, what is Christ’s becomes the sinner’s, and what is the sinner’s becomes