Three Reasons God Will Complete His Work
Unshakable Assurance in God's Unfailing Promises and Enduring Mercy
Sermon Summary
This sermon addresses the anxiety of unfinished spiritual journeys and interrupted plans. Drawing from Psalm 138, it teaches that God completes His redemptive work because of His exalted Word, His tender care for the humble in middle of trouble, and His everlasting covenant mercy. Believers are called to rest in Christ and walk in faithful obedience.
Introduction
Many Christians live with a subtle, underlying fear that the spiritual growth, family breakthrough, or ministry call they have received might stall and never reach fulfillment. Life is filled with half-built projects and broken promises, leading us to wonder if God too might leave His work in us unfinished. Whether you are navigating personal trials, financial strain, or spiritual fatigue, the weight of uncertainty can cause your heart to falter. Psalm 138 brings a refreshing, unshakable assurance into our fragile hearts. King David, writing out of intense personal struggle and deep reflection, testifies that God is not a God of half-measures. The Lord who called you, redeemed you, and sustained you thus far is fully committed to carrying you through to the end. Today, we turn to God's holy Word to discover three solid biblical reasons why you can rest assured that God will finish what He started.
Main Scripture
Psalms 138:1-8
I will give you thanks with my whole heart. Before the gods, I will sing praises to you. I will bow down toward your holy temple, and give thanks to your Name for your loving kindness and for your truth; for you have exalted your Name and your Word above all. In the day that I called, you answered me. You encouraged me with strength in my soul. All the kings of the earth will give you thanks, LORD, for they have heard the words of your mouth. Yes, they will sing of the ways of the LORD, for the LORD ’s glory is great! For though the LORD is high, yet he looks after the lowly; but he knows the proud from afar. Though I walk in the middle of trouble, you will revive me. You will stretch out your hand against the wrath of my enemies. Your right hand will save me. The LORD will fulfill that which concerns me. Your loving kindness, LORD, endures forever. Don’t forsake the works of your own hands.
Psalm 138 serves as the essential biblical foundation for this message because it offers a complete theology of divine preservation and completion. David begins with intimate wholehearted praise, declaring how God's response to prayer strengthened his inner spirit. He then lifts his eyes to God's transcendent majesty, pointing out that although God is exalted, He actively stoops down to sustain the humble while standing against the proud. Finally, in verses 7 and 8, David connects God's eternal covenant loyalty (hesed) directly to the firm conviction that the Lord will fulfill everything concerning his destiny. This passage bridges personal experience with universal truth, showing that God's integrity and eternal love guarantee the ultimate completion of His sovereign purpose.
Main Sermon Points
1. God Stands Behind His Exalted Word
I will bow down toward your holy temple, and give thanks to your Name for your loving kindness and for your truth; for you have exalted your Name and your Word above all.
David highlights that God elevates His spoken promise and revealed truth above all things, guaranteeing that His word can never fail.
Isaiah affirms that God's word goes forth from His mouth and never returns to Him void, but accomplishes every divine intent.
In ancient covenants, a king's reputation rested entirely on his word. By declaring that God has exalted His Word above all, David emphasizes that God's personal honour is tied directly to the fulfillment of His promises. When God speaks a promise of salvation, restoration, or guidance, He stakes His very name on bringing it to pass. Our confidence does not rest on our feelings or human circumstances, but on the immutable authority of God's exalted truth.
When doubt tempts you to believe that your spiritual growth or life situation is hopeless, return directly to Scripture. Build your daily life on explicit promises rather than changing emotions. Speak God's written truth over your family, work, and personal battles, knowing that He actively guards His Word to perform it.
Quick Insights
- God stakes His holy reputation on the fulfillment of every promise.
- Your feelings fluctuate daily, but God's exalted Word remains forever firm.
- True spiritual confidence begins when you anchor your soul in biblical truth.
2. God Stoops Down to Revive the Lowly
For though the LORD is high, yet he looks after the lowly; but he knows the proud from afar. Though I walk in the middle of trouble, you will revive me. You will stretch out your hand against the wrath of my enemies. Your right hand will save me.
God demonstrates His majesty not by maintaining distance, but by stooping down to revive the humble who are surrounded by trouble.
Peter encourages believers to humble themselves under God's mighty hand so that He may exalt them at the proper time.
Human power structures tend to favour the self-sufficient, but God operates on an entirely different principle. Psalm 138 reveals that divine intervention is drawn to weakness and humility. God keeps distance from the self-reliant proud, but draws close to those who admit their absolute dependence on Him. Walking in the middle of trouble does not mean God has abandoned you; rather, it is the precise terrain where His right hand stretches out to impart strength and spiritual revival.
Stop trying to prove your self-sufficiency to God or others. Embrace humility by confessing your limits in prayer, seeking help in your local church community, and trusting God's right hand to deliver you when workplace pressures or personal trials become intense.
Quick Insights
- Humility attracts God's presence, while pride keeps Him at a distance.
- Walking in trouble is often the prerequisite for experiencing God's reviving power.
- God stretches out His hand to save when human strength is completely exhausted.
3. God's Covenant Love Endures Forever
The LORD will fulfill that which concerns me. Your loving kindness, LORD, endures forever. Don’t forsake the works of your own hands.
David grounds his ultimate assurance in God's eternal covenant mercy, declaring that the Creator will never abandon what He has made and redeemed.
Paul confirms that He who began a good work in believers will faithfully complete it until the day of Jesus Christ.
The Hebrew term used here for loving kindness is hesed, representing God's unshakeable, loyal covenant devotion. David bases his bold prayer on the fact that God's hesed never expires. Because we are the work of God's hands—both by creation and redemption—He maintains an eternal investment in our spiritual destiny. He will not abandon His investment halfway through.
Rest in the truth that your salvation and ultimate preservation depend on God's eternal mercy, not your flawed perfection. When you fall or stumble, repent swiftly and lean on His everlasting love, knowing He is faithfully shaping your life until the end.
Quick Insights
- God never abandons a project He has purchased with His love.
- Your future is secured by divine covenant loyalty rather than human perfection.
- Praying according to God's enduring mercy aligns your heart with His final victory.
Bottom Line
You can face every uncertain trial with complete peace, knowing that the God who exalted His Word, stoops to revive the humble, and loves with an everlasting covenant will faithfully finish every good work He has started in you.
Memorable Quote
God never abandons what His grace has initiated; His exalted Word and everlasting mercy ensure that every work of His hands reaches its glorious destination.
Theological Point
The doctrine of divine preservation teaches that God's immutable character and eternal covenant love guarantee the final completion of redemption in every believer, ensuring that grace initiates, sustains, and glorifies.
Prayer Guide
- Thank God for His exalted Word and the unshakeable promises given to us in Christ.
- Ask God to give you a humble heart that relies daily on His reviving strength.
- Seek God's help to stand firm in times of middle trouble, trusting His protective hand.
- Pray for grace to surrender every anxiety, believing He will fulfill all that concerns you.
Responding to God’s Word
Returning to our theme, Three Reasons God Will Complete His Work, we are reminded that our ultimate hope rests not in human strength, but in the faithful character of Almighty God. The God who spoke creation into existence, who exalted His Word above all, and whose loving kindness endures forever is actively working in your life today. This great truth finds its highest fulfillment in Jesus Christ, the author and finisher of our faith. On the cross, Jesus cried out, It is finished, sealing our redemption and guaranteeing that God's work in us will reach its final perfection. Therefore, let us put away fear, lay down pride, and step forward in faithful obedience, confident that the Lord will fulfill every good purpose concerning your life, your family, and your service in His eternal kingdom.
