We are deeply concerned to hear about the spiritual attack on your younger brother and his consequent weakness. Let us first assure you that our authority in Christ Jesus is stronger than any spiritual attack. We stand with you in prayer, knowing that "our struggle is not against flesh and blood, but against the rulers, against the powers, against the world rulers of this darkness, and against the spiritual forces of wickedness in the heavenly places" (Ephesians 6:12, WEB).
Let us pray together:
"Dear Heavenly Father, we come before You in the mighty name of Jesus Christ, seeking Your divine intervention for Womeann's younger brother. Lord, You know the cause of his weakness and the source of this spiritual attack. We rebuke every evil spirit that is at work against him and command them to flee in Jesus' name. Father, we ask for Your healing power to flow through him, restoring his strength and vitality. Cover him with Your protective shield, and give him the courage and faith to stand firm against any future attacks. Surround him with Your angels, and let Your light shine upon him, driving out all darkness. In Jesus Christ's powerful name, we pray. Amen."
We encourage you, Womeann, to continue praying fervently for your brother and to put on the full armor of God. As it is written, "Therefore put on the full armor of God, so that when the day of evil comes, you may be able to stand your ground, and after you have done everything, to stand" (Ephesians 6:13, WEB). This includes the belt of truth, the breastplate of righteousness, the shoes of the Good News of peace, the shield of faith, the helmet of salvation, and the sword of the Spirit, which is the word of God.
Additionally, ensure that your brother is grounded in the faith and has accepted Jesus Christ as his Lord and Savior. If not, share the Good News with him, for "if you will confess with your mouth that Jesus is Lord, and believe in your heart that God raised him from the dead, you will be saved. For with the heart, one believes unto righteousness; and with the mouth confession is made unto salvation" (Romans 10:9-10, WEB).
Lastly, we noticed that you did not mention the name of Jesus Christ in your request. It is crucial to understand that it is only through His name that we have access to God, and there is no other name by which we can be saved (Acts 4:12, WEB). We encourage you to always approach God in Jesus' name, knowing that He is our mediator and the source of our salvation and power.
May the Lord strengthen and heal your brother, and may His peace and comfort be with you both during this time.