Psalm 51:14 & 7-10
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 you are right in your verdict and justified when you judge.
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.
Most of us will know the story of David and Bathsheba, and his following encounter with Nathan the prophet (If not, please, do look up 2 Samuel chapters 11 and 12).
Psalm 51 is David's response once he recognises the awful thing he has done. We may neither have committed adultery nor engineered the death of another person. However, we know our own deep and shallow imperfections.
If there are things we need to bring before God and to ask for mercy over, why not do so right now. Using David's prayer would be a good starting point. Know that God is love and longs to forgive and reinstate and restore. This is God's steadfast loving nature.
Lord have mercy on me, a sinner. In Jesus's name. Amen.