Answer:
The final lines of each poem convey a similar theme of invoking divine blessings and eternal happiness, but with different focuses and intentions.
In "To My Dear and Loving Husband," the speaker wishes for heavenly rewards and eternal love to persevere beyond earthly life, emphasizing the enduring nature of love and devotion in marriage.
In contrast, "To the King's Most Excellent Majesty" appeals for divine guidance and protection for the king, with the hope that his reign will bring happiness and freedom to all his subjects, highlighting the role of a monarch in ensuring the well-being and prosperity of his people.
Therefore, while both poems convey themes of divine blessings and eternal happiness, they do so within different contexts – one focusing on the enduring love between spouses, and the other on the welfare of a ruler and his subjects.