This sermon centers on the enduring nature of gratitude rooted not in temporal blessings but in the unchanging character of God, as affirmed in Hebrews 13:5–8. It argues that true thankfulness is not a seasonal sentiment or a reaction to circumstance, but a commanded, Christ-centered posture of the heart that arises from recognizing God's faithfulness and sovereignty. The preacher emphasizes that contentment is not found in the absence of material things or in self-denial, but in a transformed heart that values eternal realities over fleeting earthly pleasures, rejecting both the love of money and the illusion that material abundance brings lasting joy. By grounding gratitude in God's promise to never leave or forsake His people, the sermon calls believers to a perpetual thanksgiving that reflects a life shaped by the gospel, where worship and thanksgiving are inseparable and sustained by the eternal nature of Christ. Ultimately, the message is that lasting gratitude is possible only when the heart is renewed by God's grace and fixed on His unchanging faithfulness.