Strength and peace for dying family member

In my family of eight children one of my youngest brothers is suffering from liver cancer. His next step will be hospice. I'm looking for a simple prayer that we can say with/for him. We have members who are not religious at this time so I'm looking for something simple that everyone could say. He has a fear of dying and we all do too as he's the first of us to die. I liked the idea of replacing fear with God's mercy.