Today, like all ordinary Fridays, the Morning Prayer of the Church includes Psalm 51.
Br. Francis' blog had not too ago a quote from Augustine on this psalm:
Psalm 51 is a psalm of someone repenting, someone wishing to retrieve the hope he had lost, lying where he had fallen, begging the Lord to give him a hand to raise him up again, like someone quite capable of injuring himself but not of healing himself. After all, we can wound our own flesh whenever we want, but to heal it we look for a doctor. In the same way the soul is perfectly able to sin all by itself, but to heal the hurt it has caused by sinning, it implores the helping hand of God. -- St Augustine
Words of wisdom indeed.
mk