My dad starts chemo for colon cancer Monday

My dad was diagnosed with stage 3 colon cancer last week and starts chemo on Monday. He's 68 and has never been sick a day in his life, so this has knocked all of us sideways. Please pray that his body tolerates the treatment, that the doctors have wisdom, and that he feels God close to him in the hard days ahead. And honestly, pray for my mom too — she's trying to be strong for everyone and I can see it wearing on her.