Human: What was the reason that Saadia wrote Emunoth ve-Deoth? Assistant: 
Saadia wrote Emunoth ve-Deoth to defend Rabbinic Judaism against the views of Karaite Judaism, which rejects the oral law (Mishnah and Talmud). In his detailed introduction, Saadia speaks of the reasons that led him to compose it. His heart was grieved when he saw the confusion concerning matters of religion that prevailed among his contemporaries, finding an unintelligent belief and unenlightened views current among those who professed Judaism, while those who denied the faith