We believe that the time has come for doing more fully what He has commanded us; and by His grace we intend to do it. Not to try, for we see no Scriptural authority for trying. Try is a word constantly in the mouth of unbelievers,... far too often taken up by believers. In our experience, 'to try' has usually meant 'to fail'. (The Lord's) command is not 'Do your best,' but 'DO IT'.

(A.J. Broomhall. Hudson Taylor and China's Open Century, Book Six: Assault on the Nine. London: Hodder and Stoughton and Overseas Missionary Fellowship, 1988, 47).