"I will put my law within them, and I will write it on their hearts; and I will be their God, and they shall be my people.” And so God declares he is writing himself into us, according to Jeremiah.
The one who voices Psalm 51 is on the floor before God, utterly ashamed and as dust before glory: “My sin is ever before me.” The symptoms of sin are gradually displaced by the greater reality of God: “Against you, you alone, have I sinned.” The speaker does not look outside for an oppressor to blame, but inside, to the “inward being,” for a heart to be renewed.