Received as scripture by: Eastern Orthodox · Oriental Orthodox — Included among the Odes of the Greek Septuagint; an appendix in the Latin Vulgate. Whether it is canonical varies from church to church within these traditions.
Presented as the prayer of King Manasseh of Judah (7th century BC), but almost certainly a later pseudonymous composition, likely from the Hellenistic period (2nd-1st century BC). A short, moving prayer of repentance inspired by Manasseh's captivity and conversion recounted in 2 Chronicles.
My LORD’s Bible