Psalm 51: 3-6, 12-13, 17
Our responsorial psalm comes from Psalm 51, the best known of the seven Penitential Psalms (the others are Psalms 6, 32, 38, 102, 130, and 143). This Christian designation dates from the 7th century AD for psalms suitable to express repentance.
Although it is considered a lament, it also contains elements of a confession and prayer for forgiveness. Christians often use this psalm to pray for God’s forgiveness and petition him for inner renewal by the Holy Spirit.
If this psalm seems familiar, it was also our responsorial at the Ash Wednesday liturgy, just a few days ago.