The 16th verse of Psalm 51 is about gratitude, in a fundamental and loving way:

Psalm 51:16: “Rescue me from death, God, my saving God, that my tongue may praise your healing power.”

The penitent fully realizes that life depends upon God, and only God can save them from death. I think the eternal death, damnation. The petitioner seeks to eventually arrive in Heaven and sing God’s praises for eternity.

The petitioner hopes to return the love God showed in forgiving the sinful past by praising (loving) God forever. The soul of the penitent will be in blissful union with its beloved, never to be parted.

Psalm 30:10-11: “What gain is there from my lifeblood, from my going down to the grave? Does dust give you thanks or declare your faithfulness? Hear, O LORD, have mercy on me; LORD, be my helper.'”

(All Scripture passages via USCCB.)

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