Do you mean 'Why would I kill the person?' If so, the answer to that has been given--' Because God told me to!' or do you mean, 'Why would I do what God tells me to do?' Before I respond to this latter question, I would like to ask the following of you. Is your questioning here generated by the fact that you would not kill if God told you to, and are you, as a result, simply going to keep asking 'Why do that?' or 'Why is that? (or something like these) to every answer I give?