3 MISERERE MEI, Deus, * secundum magnam misericordiam tuam;
3 HAVE MERCY ON ME, O God, * according to Thy great mercy;
et secundum multitudinem miserationum tuarum: * dele iniquitatem meam.
and according to the multitude of Thy tender mercies: * blot out my iniquity.
4 Amplius lava me ab iniquitate mea * et a peccato meo munda me.
4 Wash me from my iniquity; * and cleanse me of my sin.
5 Quoniam iniquitatem meam ego cognosco, * et peccatum meum contra me est semper.
5 For I acknowledge my iniquity, * and my sin is always before me.
6 Tibi, tibi, soli peccavi * et malum coram te feci; ut iustus inveniaris in sententia tua, * et aequus in iudicio tuo.
6 Against Thee, Thee alone have I sinned, and done evil in Thy sight; * that Thou mayest be justified in Thy sentence, * and fair in Thy judgment.
7 Ecce enim in iniquitate generatus sum, * et in peccato concepit me mater mea.
7 For behold, I was conceived in sin, * and in sin my mother conceived me;
8 Ecce enim veritatem in corde dilexisti * et in occulta sapientiam manifestasti mihi.
8 For behold, Thou hast loved truth * , and Thy hidden wisdom Thou hast shown me
9 Asperges me hyssopo, et mundabor; * lavabis me, et super nivem dealbabor.
9 Thou shalt sprinkle me with hyssop, and I shall be cleansed, * Thou shalt wash me, and I shall be made whiter than snow.
10 Audire me facies gaudium et laetitiam, * et exultabunt ossa, quae contrivisti.
10 Thou shalt make me hear of joy and gladness, * and the bones Thou hath crushed shall rejoice.
11 Averte faciem tuam a peccatis meis, * et omnes iniquitates meas dele.
11 Turn away Thy face from my sins, * and blot out all my iniquities.
12 Cor mundum crea in me, Deus, * et spiritum firmum innova in visceribus meis.
12 Create in me a clean heart, O God, * and renew a steadfast spirit within me.
13 Ne proicias me a facie tua * et spiritum sanctum tuum ne auferas a me.
13 Cast me not from Thy presence, * and take not Thy holy spirit from me.
14 Redde mihi laetitiam salutaris tui * et spiritu promptissimo confirma me.
14 Restore unto me the joy of Thy salvation, * and strengthen me with Thy spirit.
15 Docebo iniquos vias tuas, * et impii ad te convertentur.
15 I will teach the unjust Thy ways, * and the wicked shall be converted to Thee.
16 Libera me de sanguinibus, Deus, Deus salutis meae, * et exultabit lingua mea iustitiam tuam.
16 Deliver me from blood guilt, O God, the God of my salvation * , and my tongue shall extol Thy justice.
17 Domine labia mea aperies, * et os meum annuntiabit laudem tuam.
17 Thou shalt open my lips, O Lord, * and my mouth shall declare Thy praise.
18 Non enim sacrificio delectaris, * holocaustum, si offeram, non placebit.
18 For Thou didst not desire sacrifice, * a burnt offering, for if I offered it, it would not please Thee.
19 Sacrificium Deo spiritus contribulatus, * cor contritum et humiliatum, Deus, non despicies.
19 The sacrifice of God is an afflicted spirit, * a contrite and humbled heart, O God, Thou shalt not despise.
20 Benigne fac, Domine, in bona voluntate tua Sion, * ut aedificentur muri Ierusalem.
20 Deal favorably, O Lord, in Thy good will with Sion * that the walls of Jerusalem may be built up.
21 Tunc acceptabis sacrificium iustitiae, oblationes et holocausta; * tunc imponent super altare tuum vitulos.
21 Then shalt Thou accept the sacrifice of justice, oblations and whole burnt offerings, * then shall they lay calves upon Thy altar.
Hope this helps..both Latin and English of the Psalm