God be merciful unto us, and bless us; and cause His face to shine upon us.@Psalm 67:1

John Taylor, in Selection of Hymns for Social Worship, by William Enfield (Norwich, England: 1795), number 149. The first verse in the text below was originally the last verse. The the 1795 text began, God of mercy, God of love.

Seymour from the opera Oberon, by Carl M. von Weber, 1826; Henry W. Greatorex published it as a hymn tune in 1851 (🔊 pdf nwc).

Carl M. von Weber (1786–1826)

God of mercy! God of grace!
Hear our sad, repentant songs.
O restore Thy suppliant race,
Thou to whom our praise belongs!

Deep regret for follies past,
Talents wasted, time misspent;
Hearts debased by worldly cares,
Thankless for the blessings lent.

Foolish fears and fond desires,
Vain regrets for things as vain:
Lips too seldom taught to praise,
Oft to murmur and complain.

These, and every secret fault,
Filled with grief and shame, we own.
Humbled at Thy feet we lie,
Seeking pardon from Thy throne.