In the first twenty years of its existence it actually sent out more missionaries than the whole Protestant Church had done in 200 years. If other Churches were to provide men and means in the same proportion, it is believed there would be all that is needed to carry the gospel to every creature.
And if we ask how it came that this little Church, the least of all, has thus outdone all its older and larger sisters, the answer appears to be this: It alone of all the Churches has actually sought to carry out the great truth, that to gather in to Christ the souls He died to save is the one object for which the Church exists.
It alone has sought to teach and train every one of its members to count it their first duty to Him who loved them, to give their life to make Him known to others.
Andrew Murray, The Key to the Missionary Problem (London: J. Nisbet & Co., 1902), 56.