By the use of charts, symbols, and representations of various kinds, the minister can make the truth stand out clearly and distinctly. This is a help, and in harmony with the word of God. But when the worker makes his labors so expensive that others are unable to secure from the treasury sufficient means to support them in the field, he is not working in harmony with God's plan. GW 355.4
The work in the large cities is to be done after Christ's order, not after the order of a theatrical performance. It is not a theatrical performance that glorifies God, but the presentation of the truth in the love of Christ. GW 356.1