The key of all missionary success is prayer. That key is in the hands of the home churches. The trophies won by our Lord in heathen lands will be won by praying missionaries, not by professional workers in foreign lands. More especially will this success be won by saintly praying in the churches at home. The home church on her knees fasting and praying, is the great base of spiritual supplies, the sinews of war, and the pledge of victory in this dire and final conflict. Financial resources are not the real sinews of war in this fight. Machinery in itself carries no power to break down heathen walls, open effectual doors and win heathen hearts to Christ. Prayer alone can do the deed. Aaron and Hur did not more surely give victory to Israel through Moses, than a praying church through Jesus Christ will give victory on every battlefield in heathen lands. It is as true in foreign fields as it is in home lands. The praying church wins the contest. The home church has done but a paltry thing when she has furnished the money to establish missions and support her missionaries. Money is important, but money without prayer is powerless in the face of the darkness, the wretchedness and the sin in unchristianised lands. Prayerless giving breeds barrenness and death. Poor praying at home is the solution of poor results in the foreign field. Prayerless giving is the secret of all crises in the missionary movements of the day, and is the occasion of the accumulation of debts in missionary boards. It is all right to urge men to give of their means to the missionary cause. But it is much more important to urge them to give their prayers to the movement. Foreign missions need, today, more the power of prayer than the power of money. Prayer can make even poverty in the missionary cause move on amidst difficulties and hindrances. Much money without prayer is helpless and powerless in the face of the utter darkness and sin and wretchedness on the foreign field. This is peculiarly a missionary age. Protestant Christianity is stirred as it never was before in the line of aggression in pagan lands. The missionary movement has taken on proportions that awaken hope, kindle enthusiasm, and which demand the attention, if not the interest, of the coldest and the most lifeless. Nearly every Church has caught the contagion, and the sails of their proposed missionary movements are spread wide to catch the favouring breezes. Herein is the danger just now, that the missionary movement will go ahead of the missionary spirit. This has always been the peril of the Church, losing the substance in the shade, losing the spirit in the outward shell, and contenting itself in the mere parade of the movement, putting the force of effort in the movement and not in the spirit.