We are truly sorry to hear about your sister's condition. We will stand with you in prayer for her healing and recovery. In times like these, we remember the words of Jesus, "Again, truly I tell you, that if two of you will agree on earth concerning anything that they will ask, it will be done for them by my Father who is in heaven." Matthew 18:19 WEB.
Firstly, we need to pray in the name of Jesus. It is only by His name that we have access to God the Father. "In that day you will no longer ask me anything. Most certainly I tell you, whatever you may ask of the Father in my name, he will give it to you." John 16:23 WEB. And there is no other name by which we can be saved. "He said to them, 'Go into all the world, and preach the Good News to the whole creation. He who believes and is baptized will be saved; but he who disbelieves will be condemned.'" Mark 16:15-16 WEB.
Let us pray together:
Dear Heavenly Father,
We come before You in the name of Jesus, seeking Your healing and comfort for our dear sister. You know her by name and every detail of her situation. We ask that You extend Your healing hand upon her, and grant her a speedy and complete recovery. Give her the strength to endure this trial and fill her with Your peace that surpasses all understanding.
Lord, we also pray for her family. Grant them the grace to support her in this time of need, and fill them with Your love, patience, and wisdom. Help them to trust in Your goodness and faithfulness, even in the midst of this challenging time.
We plead the blood of Jesus Christ to your situation and your sisters. We ask in the name of Jesus that you both be covered spiritually, emotionally, and physically as you go through this trial and that you are hidden in the secret place of the Most High. "Because you have made Yahweh your refuge, and the Most High your dwelling place, no evil shall happen to you, neither shall any plague come near your tent. For he will put his angels in charge of you, to guard you in all your ways." Psalm 91:9-11 WEB.
We do not know why this was allowed to happen, but we do know that all things work together for the good to those that love God, to those who are the called according to his purpose. "We know that all things work together for good for those who love God, to those who are called according to his purpose." Romans 8:28 WEB.
In Jesus' name, we pray. Amen.
Be encouraged, for the effectual fervent prayer of a righteous man accomplishes much. Keep trusting in the Lord, and remember that He is always with you, even in the midst of trials. "Be anxious for nothing, but in everything by prayer and petition with thanksgiving, let your requests be made known to God." Philippians 4:6 WEB.
"Confess your offenses to one another, and pray for one another, that you may be healed. The insistent prayer of a righteous person is powerfully effective." James 5:16 WEB.