Psalms 50 (51) 

God, in your faithful love, in your great tenderness wipe away my offences;
wash me clean from my guilt, purify me from my sin.
For I am well aware of my offences, my sin is constantly in mind.
Against you, you alone, I have sinned,
I have done what you see to be wrong,
that you may show your saving justice when you pass sentence,
and your victory may appear when you give judgement,

remember, I was born guilty, a sinner from the moment of conception.
But you delight in sincerity of heart, and in secret you teach me wisdom.
Purify me with hyssop till I am clean, wash me till I am whiter than snow.
Let me hear the sound of joy and gladness, and the bones you have crushed will dance.
Turn away your face from my sins, and wipe away all my guilt.

God, create in me a clean heart, renew within me a resolute spirit,
do not thrust me away from your presence, do not take away from me your spirit of holiness.
Give me back the joy of your salvation, sustain in me a generous spirit.
I shall teach the wicked your paths, and sinners will return to you.
Deliver me from bloodshed, God, God of my salvation, and my tongue will acclaim your saving justice.

Lord, open my lips, and my mouth will speak out your praise.
Sacrifice gives you no pleasure, burnt offering you do not desire.
Sacrifice to God is a broken spirit, a broken, contrite heart you never scorn.
In your graciousness do good to Zion, rebuild the walls of Jerusalem.

Then you will delight in upright sacrifices,-burnt offerings and whole oblations -- and young bulls will be offered on your altar.

Our Lady of Perpetual Help, please help us. We implore you to hear our prayer.
Amen.