What are some lines you say when you have a close religious friend ask for prayers?

Melflower🌻 • 🌻Married // Mom 💙; ttc#2

A friend of mine has been having some pregnancy complications and has made multiple posts asking for prayers. The only thing I can think of to say is “sending lots of love and good vibes your way” does that sound okay? I don’t want to sound insensitive