be in (one's) prayers

To be the object of one's sympathy and concern. Used especially in reference to someone who has just suffered a tragic loss or is otherwise experiencing a painful or challenging time. I'm so sorry to hear about your mom, Ellen. You're in my prayers. A: "I can't believe the Millers' house burned down." B: "I know, it's horrible. They're in all of our prayers." I heard about your husband's illness. Please know that he's in our prayers.