Healing is a significant sign and metaphor of biblical faith.
The prophets of the Old Testament and Jesus himself were healers. Physical well-being was valued for its own sake as well as a sign of hope for the day when everyone would share equally in the blessings of shalom. Many of Jesus' miracles were miracles of healing. He touched and healed lepers, restored sight, caused the lame to walk and renewed the life of the woman who had suffered for years with a flow of blood. Clearly, we have understood Jesus' concern for physical well-being as a commission to carry on that work of healing.