Thou, O Lord, art a God full of compassion, and gracious, long suffering, and plenteous in mercy and truth.
Psalm 86:15
Words: Edmund Vaughan, in Hymns for the Confraternity of the Holy Family (Burns & Lambert, 1854). Act of Contrition.
Music: Tarrytown B.M.J., in the American Catholic Hymnal, edited by the Marist Brothers (New York: P. J. Kenedy & Sons, 1913), number 203 (🔊 pdf nwc).
If you know the composer, or where to get a good photo of him or Vaughan (head & shoulders, at least 200×300 pixels),
God of mercy and compassion,
Look with pity upon me.
Father, let me call Thee Father,
’Tis Thy child returns to Thee.
Refrain
Jesus, Lord, I ask for mercy;
Let me not implore in vain;
All my sins—I now detest them,
Never will I sin again.
By my sins I have deservèd
Death and endless misery;
Hell, with all its pains and torments,
And for all eternity.
Refrain
By my sins I have abandoned
Right and claim to Heav’n above,
Where the saints rejoice forever,
In a boundless sea of love.
Refrain
See our Savior, bleeding, dying,
On the cross of Calvary;
To that cross my sins have nailed Him,
Yet He bleeds and dies for me.
Refrain