This is a question that I haven't been able to find a sufficient answer to. What is the practical difference between operating out of authority to heal the sick (as the disciples did) and operating through the gifts of healing given by the Holy Spirit? Is there an operational difference?
The only answer that I got that I found, in part, sufficient was a matter of ministry. Someone may be called/chosen to a ministry of healing (think Kathryn Kuhlman), where as other believers are called to something else (like prophecy/prophetic). So, the difference between the authority every believer has (to address sickness), and the gifts of healing is matter of ministry, what the calling on their life is.
This still, however, doesn't answer the operational difference between the two.
The only answer that I got that I found, in part, sufficient was a matter of ministry. Someone may be called/chosen to a ministry of healing (think Kathryn Kuhlman), where as other believers are called to something else (like prophecy/prophetic). So, the difference between the authority every believer has (to address sickness), and the gifts of healing is matter of ministry, what the calling on their life is.
This still, however, doesn't answer the operational difference between the two.