Psalms 9:1

I will praise thee, O Lord, with my whole heart; I will shew forth all thy marvellous works.

Psalms 9:1 (KJV)

The book of Psalms is a collection of poetic songs and prayers, many written by King David. Psalm 9 is a song of thanksgiving for God’s righteous judgments and His deliverance of His people. This verse opens the psalm with a personal promise to worship.

The psalmist declares, “I will praise thee, O LORD, with my whole heart.” The Hebrew word for praise here means to confess or speak out openly, not just to sing privately. This is a deliberate choice to give God complete devotion, holding nothing back. The phrase “with my whole heart” shows sincerity and honesty in worship, far from any half-hearted or shallow attitude. Such praise is not casual or routine; it is a wholehearted commitment that engages the entire person.

The second part, “I will shew forth all thy marvellous works,” moves from inward feeling to outward action. The psalmist promises to tell others about God’s wonderful deeds. This is a public testimony, not a secret faith. By recounting God’s power and goodness, the psalmist invites others to join in worship. The verse sets the tone for the whole psalm, which celebrates God’s righteous judgments and His care for His people.

This kind of heartfelt praise appears elsewhere in Scripture. The psalmist also resolves to praise God in the congregation (Psalm 111:1), and the New Testament encourages believers to sing with grace in their hearts (Colossians 3:16; Ephesians 5:19). These passages together show that wholehearted praise is both personal and shared with God’s people.

Psalm 9:1 calls believers to examine their own worship. Is praise offered with complete attention and love, or is it routine? The verse also challenges us to speak of God’s works to others. Sharing testimonies of His faithfulness strengthens our own faith and encourages those who hear.

  • Offer God undivided devotion in prayer and song.

  • Tell someone this week about a specific way God has worked in your life.

True praise begins in the heart and flows out through words. When we remember God’s marvelous works, our worship becomes both genuine and contagious.

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