In Mark Chapter 10, it is written:
22"Have faith in God," Jesus answered. 23"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. 24Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours.
I pray that my friend's mom will be healed, from this moment onwards, completely from her illness, and live until her very old age. Amen.