Singer Mark Hall explained in the liner notes of Wow Hits 2008: "This song came out of a relationship that we formed with a family early on. Their young daughter, Erin, was battling cancerous tumors all throughout her lungs. Her mother began including us in emails that she was writing to her group of supporters. They were constantly going back and forth to doctors and hospitals for treatments. I still have most of them. The journey this mom went through was just amazing. There's no way I'll ever be able to understand what she was going through. These emails described the journey of her faith and what her worship would look like. One day it was, 'We're going to be okay. We have faith God is going to do this.' And then another would be like, 'What is the deal? Is he even here?' She passed away earlier this year. We decided to subtitle the song 'Erin's Song' in her honor."