This sermon uses the Biblical account of Elijah's brook drying up to illustrate how God removes comfortable circumstances to prepare believers for new assignments. It emphasizes that when familiar sources of spiritual or emotional support vanish, Christians should not despair but trust in divine providence and obedience. The preacher challenges the congregation to avoid complacency by actively engaging in service, even through unconventional methods. By sharing personal anecdotes about ministry shifts and international missions, the message underscores the urgency of witnessing to others before it is too late. Ultimately, the central call is to remain faithful and responsive to God's direction rather than relying on temporary comforts.