I will sing and make music.
The act of singing and making music is a common expression of worship and praise throughout the Bible. In the cultural context of ancient Israel, music was integral to worship, both in personal devotion and communal gatherings. Instruments like the lyre and harp were often used, as seen in David's own life as a musician before King Saul (1 Samuel 16:23). This phrase indicates a transition from internal resolve to external expression, showing that true faith often results in outward acts of worship. Theologically, it reflects the joy and peace that come from a steadfast heart, as seen in other psalms like Psalm 95:1, which calls believers to sing for joy to the Lord. This act of worship can also be seen as prophetic, pointing to the ultimate worship of God by all nations, as envisioned in Revelation 5:9, where a new song is sung to the Lamb.

David opens with a declaration of inner firmness. By stating his heart is “steadfast,” he affirms an unshakable confidence that God will act exactly as He has promised—no matter how dark the cave of Adullam feels (the setting of the psalm).

• Psalm 112:7 echoes the same settled spirit: “His heart is steadfast; he will not fear bad news.”

• Psalm 108:1 repeats the identical wording, underlining how often David returned to this conviction.

• 2 Chronicles 16:9 reminds us the LORD “shows Himself strong on behalf of those whose hearts are wholly devoted to Him,” validating David’s certainty that God notices and rewards steadfast faith.

This first phrase invites believers to keep their inner life anchored to God’s unchanging character rather than outward circumstances.

Between the two statements of resolve, David directly addresses the Lord.

• The personal “O” signals relationship, not distant religion (Psalm 42:1–2).

• Exodus 3:14’s “I AM WHO I AM” undergirds why David can be so sure: the One he calls upon is eternally self-existent and faithful.

• Psalm 62:8 says, “Trust in Him at all times… pour out your hearts before Him,” modeling the very cry David voices here.

Granting God the central place in the sentence reminds us that steadfastness is not self-generated; it rests in the character of the God we call upon.

David repeats himself intentionally.

• Repetition turns belief into resolve; saying it twice drives the stake deeper (Psalm 27:13–14).

• The opposite of this attitude—double-mindedness—receives a sober warning in James 1:8. David is determined not to drift into that trap.

• Philippians 4:7 assures us that when our minds are fixed on the Lord, “the peace of God… will guard your hearts,” matching the calm David announces.

When storms rage, speak truth to your soul until your emotions align with what God has already said.

Steadfast faith erupts in worship.

• Psalm 9:1–2 shows the same sequence: confidence leads to praise.

• Acts 16:25 demonstrates that midnight songs in a prison shake chains—literally for Paul and Silas and spiritually for us.

• Colossians 3:16 urges believers to let “the word of Christ dwell richly” by teaching and “singing psalms, hymns, and spiritual songs.”

Notice the will: “I will sing.” Praise is a choice, not a feeling. When the heart is anchored, the mouth follows with melody.

Psalm 57:7 paints a simple but powerful progression:

1. Anchor your heart firmly in God’s unchanging nature.

2. Address Him personally, knowing He listens.

3. Reinforce your resolve by repeating truth to yourself.

4. Let that settled confidence overflow into intentional, joyful praise.

The verse is a call to move from inner conviction to outward worship, trusting that the God who inspired David’s song remains just as faithful today.