writes about God’s preeminence and power in controlling when and how revivals come upon the church: Both in the hearts of believers and in the life of a congregation there come times that correspond somewhat with the ebb and the flow of the tides. Also in the growth of an oak tree there comes a season of waiting for growth again to begin. But all such analogies fall short of the truth about revivals. A man who knows the ways of the waves, or of an orchard, can judge fairly well what will follow after