This sermon examines Exodus 4 to illustrate God's sovereignty and the necessity of immediate obedience to His call. The preacher analyzes Moses' objections, highlighting how God provides miraculous signs like the serpent and leprosy to demonstrate His authority over fear, disease, and political power. The message emphasizes that human weakness does not disqualify one from service, as God equips those He chooses. It warns against using excuses to avoid responsibility, noting that disobedience leads to lost privileges and divine correction. Ultimately, the text points to Jesus Christ as the perfect fulfillment of God's redemptive plan, urging believers to surrender their ordinary resources to His extraordinary use.