Is it necessary to speak of faith as one of the chief lessons that was needed for the pentecostal mission work of the first century and of ours? It was not only in His direct teaching of the disciples, but in all He said to others in their hearing, and in all the proofs He gave in their presence of the indispensable need, of the conditions, of the power of faith, that He trained them into the apprehension of the place it must have in their life and work.

We know what faith is. From the first simple faith that hears a promise and believes God’s word, to the faith that enters into full and conscious union with our Lord, and abides in Him and does the “greater works,” faith is ever one of the first conditions of the power of the Spirit’s working.

The pentecostal Church received and maintained its blessing and power, did its work, endured its sufferings, and gained its conquests, all through faith.
Faith is such a simple thing that many think it an easy thing.

As the power to overcome the world, and cast out Satan, and bring men out of darkness into God’s light, it is no easy thing. It implies the renunciation of self, the crucifixion to the world, the ceasing from man with his wisdom and his power, and dependence on God alone. We speak of faith missions, in which faith, in some one of its special aspects is specially prominent.

We need to emphasise the great truth that all mission work is to be faith work. And that, if this is to be, we want to begin at the beginning, and seek not only to have the word mixed with faith in them that hear, but to have all our work and prayer mixed with faith too. “By faith Abel offered a better sacrifice.”

When the offering of money in a collection is as sacred a thing as the offering of prayer, when the faith which is essential to make a prayer effectual is seen to be just as indispensable to make a gift effectual, we shall find the point of contact in dealing with individual believers, and our missionary meetings and collections will become as helpful to the life of faith as the preaching of the gospel.

From the individuals we shall then rise to the various societies or congregations to which they belong, and through these on to leaders and directors and missionaries, until all unite in the one deep and overmastering conviction: Mission work is faith work. When the faith which comes from knowing Christ, in His saving power in ourselves, in His saving power over all, from knowing Him as the Triumphant and Almighty One who Himself will work in them that believe in Him, is acknowledged as indispensable for all our workers at home and abroad, we shall be approaching the new pentecostal era.

Andrew Murray, The Key to the Missionary Problem (London: J. Nisbet & Co., 1902), 125–127.