Declare Me Righteous

⁸  ...Declare me righteous, O Lord,
          for I am innocent, O Most High! ~ Psalm 7:8 New Living Translation (NLT)

God, teach me the lesson here.
It feels wrong, arrogant, presumptuous.
What is the effect of declaring me righteous?
It doesn't change Your mind.
Is the purpose to assure me,
to remove my doubts, my self-loathing?
¡Ojalá que sí! Let it be so!!