Had a guy ask me this question and I didn't know how to answer. Maybe you can help. If God is all knowing and knows when we will die and how, why pray for someone that is in the hospital dying. Does God hear our prayers and determine if the person lives or dies by how many people are praying for them? If so and we pray and the person dies, could God maybe have changed his mind and let them live if he would have had only one or two more people praying for them? So the question is, does God NEED our prayers? Does praying change God's mind about something, or is praying just something we do to make ourselves feel good better?