Expect great things from God; attempt great things for God. - William Carey

The Missionaries must be men of great piety, prudence, courage, and forbearance; of undoubted orthodoxy in their sentiments, and must enter with all their hearts into the spirit of their mission; they must be willing to leave all the comforts of life behind them, and to encounter all the hardships of a torrid, or a frigid climate, an uncomfortable manner of living, and every other inconvenience that can attend this undertaking. … They must be very careful not to resent injuries which may be offered to them, nor to think highly of themselves, so as to despise the poor heathens, and by those means lay a foundation for their resentment, or rejection of the gospel. They must take every opportunity of doing them good, and labouring, and travelling, night and day, they must instruct, exhort, and rebuke, with all long suffering, and anxious desire for them, and, above all, must be instant in prayer for the effusion of the Holy Spirit upon the people of their charge. Let but missionaries of the above description engage in the work, and we shall see that it is not impracticable. It might likewise be of importance, if God should bless their labours, for them to encourage any appearances of gifts amongst the people of their charge; if such should be raised up many advantages would be derived from their knowledge of the language, and customs of their countrymen; and their change of conduct would give great weight to their ministrations.

Yet God repeatedly made known his intention to prevail finally over all the power of the Devil, and to destroy all his works, and set up his own kingdom and interest among men, and extend it as universally as Satan had extended his. It was for this purpose that the Messiah came and died, that God might be just, and the justifier of all that should believe in him. When he had laid down his life, and taken it up again, he sent forth his disciples to preach the good tidings to every creature, and to endeavour by all possible methods to bring over a lost world to God.

The most glorious works of grace that have ever took place, have been in answer to prayer; and it is in this way, we have the greatest reason to suppose, that the glorious out-pouring of the Spirit, which we expect at last, will be bestowed.