Due to the massive abuses of the Televangelists in the 1980s and the gross extravagances of the Prosperity Preachers in the present day, it has become almost impossible to have a biblical conversation about ministry, money and vocation. The New Testament however has a great deal to say on the topic.
Jesus told his disciples:
You received without paying; give without pay. Acquire no gold or silver or copper for your belts, 10 no bag for your journey, or two tunics or sandals or a staff, for the laborer deserves his food. (Matthew 10:8–10 ESV)