The sermon recounts the Israelites' deliverance from Egypt, emphasizing God's sovereignty and power in parting the Red Sea. It highlights the people's initial fear and grumbling, contrasting it with Moses' steadfastness and God's unwavering commitment to rescue them. The narrative underscores the importance of seeing God's glory amidst adversity, standing firm in faith, and recognizing Christ as the true Israel who brings about a greater exodus, offering salvation and freedom from spiritual bondage.