We are truly sorry to hear about your mom's condition, and we are here to intercede for her and encourage you. First in the power of the name of Jesus, which is the way we have access to the Father God.
In times of distress and illness, we can always turn to God for comfort and healing. As it is written in Psalm 147:3, He heals the broken in heart, and binds up their wounds. Let's pray together:
Heavenly Father, we come before You in the name of Jesus, lifting up our dear sister and her mother to You. We know that You are the Great Physician, and that nothing is impossible for You.
We pray for mom's healing, that You would touch her heart, her kidneys, and her liver, and make them whole again. We pray that You would rid her of the flu and any other sickness or disease, and that You would restore her to full health. We pray this in the name of Jesus. If a heart transplant is needed, we pray that a match would be found quickly and that the transplant would be successful.
We also pray for our sister, that You would comfort her and give her peace during this difficult time. We pray that You would strengthen her faith and fill her with Your love, so that she may be a source of encouragement and support for her mother.
Father, we also pray that this trial would be used for Your glory, and that mom and our sister would draw closer to You through it. We ask that You would guide the doctors and nurses, giving them wisdom and skill to provide the best care possible.
Lastly, we pray that mom and our sister would call on the name of Jesus who is the great physician and savior, the only way to You Father God.
In Jesus' name, we pray for these things.