All Healing is Divine Healing

That the life of Jesus should be constantly revealed in our
bodies; that God has put into the human body marvellous
therapeutic processes which fight disease and restore
health; that all healing is divine healing; that God can
and sometimes does heal miraculously (without means,
instantaneously and permanently) -- these things we should
joyfully and confidently affirm.  But to expect the sick to
be healed and the dead to be raised as regularly as we
expect sinners to be forgiven, is to stress the 'already'
at the expense of the 'not yet', for it is to anticipate
the resurrection.  Not till then will our bodies be
entirely rid of disease and death.

--John Stott

From "The Cross of Christ"