St. Augustine preaches on the importance of giving thanks to the Lord for His enduring mercy, emphasizing that His mercy is eternal and bestowed upon His saints and faithful ones. He delves into the concept of God being the God of gods and Lord of lords, explaining that even men are called gods in Scripture, not because they are all good, but because the word of God came to them. Augustine also explores the idea of angels being called gods and the distinction between the gods mentioned in the Bible. He concludes by highlighting God's wondrous works, His deliverance of His people, and His provision for all flesh, urging gratitude to the God of Heaven and the Lord of lords.