Something has changed in Job's voice. The grief is still there — it never left — but something has hardened underneath it into something that sounds almost like clarity. For chapters he has been defending himself, explaining himself, asking to be understood, reaching for the friends and finding dry riverbeds. He has been a man trying to be heard. And now, in chapter twelve, he stops trying to be heard and starts being sharp. The sorrow has not diminished. But it has found an edge.

Truthwins.com