Have mercy on me, O God,
according to your unfailing love;
according to your great compassion
blot out my transgressions.
Wash away all my iniquity
and cleanse me from my sin.

For I know my transgressions,
and my sin is always before me.

Against you, you only, have I sinned
and done what is evil in your sight,
so that you are proved right when you speak
and justified when you judge.

Surely I was sinful at birth,
sinful from the time my mother conceived me.

Surely you desire truth in the inner parts;
you teach me wisdom in the inmost place.

Cleanse me with hyssop, and I will be clean;
wash me, and I will be whiter than snow.

Let me hear joy and gladness;
let the bones you have crushed rejoice.

Hide your face from my sins
and blot out all my iniquity.

Create in me a pure heart, O God,
and renew a steadfast spirit within me.

Do not cast me from your presence
or take your Holy Spirit from me.

Restore to me the joy of your salvation
and grant me a willing spirit, to sustain me.

Then I will teach transgressors your ways,
and sinners will turn back to you.

Save me from bloodguilt, O God,
the God who saves me,
and my tongue will sing of your righteousness.

O Lord, open my lips,
and my mouth will declare your praise.

You do not delight in sacrifice, or I would bring it;
you do not take pleasure in burnt offerings.

The sacrifices of God are a broken spirit;
a broken and contrite heart,
O God, you will not despise.

In your good pleasure make Zion prosper;
build up the walls of Jerusalem.

Then there will be righteous sacrifices,
whole burnt offerings to delight you;
then bulls will be offered on your altar.

-Psalm 51