im in 2020 and Ramadan ! i research to answer a christian about this verses Quran 9:29 to 9:39, he ask me : "in this verse Allah commands Muslims to attack Christians, and to not show them mercy, and to not allow them to spread Christianity to their people, and to force them to pay jizayah. Why is Allah so violent? " what should i replay to him that would explain whole of of this question ? ( im bad in English i want to explain it goodly )