Joseph Carroll emphasizes God's method of training Moses, illustrating how God prepares individuals for His purposes through trials and challenges. He highlights Moses' initial reluctance and excuses when called to lead the Israelites out of Egypt, showcasing the importance of surrendering to God's will despite personal insecurities. Carroll warns against becoming immune to the truth and encourages believers to embrace their identity as God's chosen people, willing to endure stigma for the sake of Christ. He also discusses the necessity of faith and obedience in responding to God's call, reminding the congregation that God often uses difficult circumstances to mold and prepare His servants.