The whole question of our duty as Christians, on this point as on all others, hinges here,--Are we doing, or are we not doing, that which God wills us to do? All theories respecting outlays, values, results, sink into utter insignificance beside this question. If we are called to go, it is not for the sake of honour, it is not for the sake even of success, but it is simply for the doing of the Will of God. If we are bidden to remain at home, it is still for the doing of His Will,--and that Will includes the spreading of the Church of Christ throughout the world. Those who stay at home can at least help those who go on this mission.