I doubt that all people in healing professions would proclaim that they are helping to bring about the Kingdom, but they are because all wisdom and knowledge comes from God. All ability to help and to comfort is from God. Inspiration for cures comes from God too. Aside from people in the healing professions, people who pray for the healing of friends and loved ones are helping to bring about the Kingdom because in the Kingdom there is no sickness (physical, emotional or spiritual). There is no more death, no more crying. No one weeps in the Kingdom.
For reflection: For whom do I need to pray today? If I see someone in the next few days, will I be open to God's prompting to pray with them in person? If I am in the healing professions, do I thank God every day for the privilege of helping to proclaim "sight to the blind". Do I know someone who is caring for a loved one at home? How can I offer a hand?
Let us pray. Heavenly Father, there is so much work to do in the area of healing to bring about your Kingdom. We need more knowledge of how the human body works. We need more inspiration for cures. How can I help?