Psalm 32

What hiding sin does to a body: brittle bones, groaning, strength dried up like summer. Then "I acknowledged my sin... and did not hide," and forgiveness came at once. The man who stopped hiding finds that God Himself becomes his hiding place. Paul quotes 32:1-2 in Romans 4:7-8 for grace apart from works.

"Then I acknowledged my sin to You and did not hide my iniquity. I said, “I will confess my transgressions to the LORD,” and You forgave the guilt of my sin. Selah" (Psalm 32:5)

Versions/Hebrew: "Confess" in 32:5 is odeh, from yadah [3034], the same verb translated "give thanks" in Psalm 30:4, 12 (verified in OSHB). Confessing and thanking are one word, both an open-handed acknowledgment.