"The Lord has heard my cry for mercy; the Lord accepts my prayer." (Psalm 6:9)
Psalm 6 is the first of the seven Penitential Psalms, a group that includes Psalms 32, 38, 51, 102, 130, and 143, which the Church has prayed together since ancient times as prayers of sorrow for sin. David opens in anguish: Lord, do not rebuke me in your anger or discipline me in your wrath. Have mercy on me, Lord, for I am faint; heal me, Lord, for my bones are in agony. The psalm does not name the sin. It names the suffering that follows it: physical weakness, anguish of soul, a sense of the distance of God.
The question David asks in verse 5 is profound and troubling: Among the dead no one proclaims your praise; who praises you from the realm of the dead? This is not cynicism but urgency. His life has value for the praise it can render. His remaining days on earth are days of potential worship. This gives a new quality to the prayer for healing: he is not simply asking to be spared suffering. He is asking for more time to praise.
The central verses are among the most raw in the Psalter: I am worn out from my groaning. All night long I flood my bed with weeping and drench my couch with tears. My eyes grow weak with sorrow. There is no attempt to spiritualise the suffering or move quickly past it. The Psalms are the great school of honest prayer precisely because they do not skip the dark passages. The Catechism teaches that Christian prayer can bring before God the full range of human experience, including the darkest, because nothing is outside God's hearing (CCC 2630).
But Psalm 6 does not end in the tears. It pivots abruptly and without explanation: Away from me, all you who do evil, for the Lord has heard my weeping. The Lord has heard my cry for mercy; the Lord accepts my prayer. What changed? Not the external circumstances. What changed is the confidence of the one praying. The prayer has been heard. The acceptance is certain. The enemies will be put to shame.
Brothers and sisters, if you are in the middle of Psalm 6, if the nights are long and the tears will not stop, pray it. Do not skip to the confident ending before you have spent time in the honest middle. God hears the weeping before he turns it to joy. The pivot in verse 9 is not available until you have prayed through verses 2 to 7. Stay with the lament. The Lord accepts this prayer too.
Lord God, have mercy on me, for I am faint. Heal me, for my soul is in agony. In your unfailing love, hear my weeping. Turn my groaning to praise, and let my remaining days be days of worship. The Lord has heard; the Lord accepts. Through Christ our Lord. Amen.