Paul Copan, known for his book "Is God a Moral Monster?", addresses criticisms both outside and within the church regarding the Old Testament's portrayal of God. He challenges the dismissal of the Old Testament God as harsh and flawed, contrasting it with the kind and compassionate God revealed by Jesus. Copan examines difficult Old Testament passages within their historical and theological contexts, highlighting both divine kindness and severity. His book includes a Scripture index for controversial passages, aiming to clarify misunderstandings that create division between the Old and New Testaments.