O Lord, Thou Art My God

“O Lord, Thou Art My God and King” is a metrical paraphrase of Psalm 145 as found in the Scottish Psalter of 1650. This psalm of David is a hymn of praise that exalts the Lord as King and celebrates His greatness, goodness, and everlasting reign. The Scottish Psalter rendered the biblical text into simple, dignified English verse so that it could be sung congregationally, embedding Scripture deeply into public worship.

The hymn opens with a personal confession of allegiance and worship. The psalmist declares the Lord to be his God and King, committing to bless His name forever. This reflects the biblical call to continual praise found in Psalm 145:1-2, where worship is not limited to sacred moments but extends into every day of life. The language emphasizes both reverence and intimacy, portraying God as sovereign yet personally known.

A strong generational theme runs through the hymn. One generation is called to declare God’s mighty acts to the next, ensuring that His works and greatness are remembered and proclaimed. This aligns with Psalm 145:4 and underscores the covenant responsibility of God’s people to pass on the knowledge of His faithfulness. Worship is shown to be both personal and communal, rooted in shared testimony.

The hymn also magnifies the character of God. His greatness is described as unsearchable, His works as glorious, and His goodness as abundant. Such themes echo throughout the Psalms and reinforce the truth that God’s kingship is exercised not with tyranny, but with mercy, righteousness, and steadfast love. Psalm 96:4 supports this vision by declaring the Lord to be great and greatly to be praised above all gods.

“O Lord, Thou Art My God and King” has endured as a foundational piece of Reformed worship. Its faithfulness to Scripture, clarity of expression, and focus on God’s eternal kingship have made it a lasting instrument of praise. Sung across centuries, it continues to call worshipers to exalt the Lord with reverence, gratitude, and unwavering devotion.