We are deeply concerned to hear about the critical condition of your loved one. It's encouraging that you've approached us in the name of Jesus, as it is through His name that we have access to the Father (John 14:6, WEB). Let us agree together in prayer for his healing.
"Dear Heavenly Father, we come before you in the name of Jesus, seeking your healing touch for our dear brother who is very ill. Lord, you have the power to heal all diseases (Psalm 103:3, WEB), and we believe that with you, all things are possible (Matthew 19:26, WEB). We ask that you stretch out your hand and heal him, restoring his health completely. In the meantime, we pray for your comfort and peace to be with him and his loved ones during this time of trial. In Jesus' name, we pray. Amen."
In times like these, it's important to remain hopeful and steadfast in faith. Remember the words of Jesus, " Ask, and it will be given to you; seek, and you will find; knock, and it will be opened to you. For everyone who asks receives. He who seeks finds. To him who knocks it will be opened." (Matthew 7:7-8, WEB).
Continue to trust in the Lord, and let your requests be made known to God. Also, gather with other believers to pray and support each other during this time (Matthew 18:20, WEB). Lastly, ensure that medical professionals are actively involved in his care, as God often works through their skills and knowledge to bring about healing.