Psalm 50 : 3-4, 5-6a, 12-13, 14 and 17
Have mercy on me, o God, in Your love. In Your great compassion blot out my sin. Wash me thoroughly of my guilt; cleanse me of evil.
For I acknowledge my wrongdoings and have my sins ever in mind. Against You alone have I sinned; what is evil in Your sight I have done.
Create in me, o God, a pure heart; give me a new and steadfast spirit. Do not cast me out of Your presence nor take Your Holy Spirit from me.
Give me again the joy of Your salvation and sustain me with a willing spirit. O Lord, open my lips, and I will declare Your praise.