Barring my faulty memory (and if I’m not lazy) I want to post prayers on Monday from all over Church History and then throughout the modern day, and then my own. In 2 Chronicles 33:10-13 Manasseh, captured by the Assyrians, repents before God and prays. Scripture doesn’t record the prayer but someone (likely a Christian) decided to insert a prayer that they thought would be nice to include. As such, it was quickly used in parts of the Church that had access to the Greek text. Here is the prayer of pseudo-Manasseh.