2 Maccabees 12:42

Betook themselves unto prayer, and besought him that the sin committed might wholly be put out of remembrance. Besides, that noble Judas exhorted the people to keep themselves from sin, forsomuch as they saw before their eyes the things that came to pass for the sins of those that were slain.

Background and history of 2 Maccabees, and issues with this book.