Faith even the size of a mustard seed can move mountains, but many of us prefer the less spectacular but safer results that come from operating in our own strength.... Do we really believe that our prayers to an invisible God can and will change the hard hearts of tyrants, break down oppressive social and religious systems, and deliver fullness of life to those who suffer in abject hopelessness. F.B. Meyer wrote, 'You do not test the resources of God until you attempt the impossible.