We are truly sorry to hear about the struggles your family is facing, and we want you to know that you are not alone in this difficult time. We will stand with you in prayer and offer some biblical encouragement.
Firstly, we want to commend you for acknowledging the power of Jesus Christ in your prayer request. It is only through His name that we can approach God the Father and receive His help and healing. As it is written in John 14:6 WEB:
Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me.
In times of trouble, God is our refuge and strength, a very present help in trouble. Therefore, let's come before Him with a humble heart and seek His intervention for your family.
Let us pray:
Dear Heavenly Father,
We come before You in the name of Jesus Christ, lifting up this family that is going through a difficult time. Lord, You know the struggles they are facing, and You hear their cries for help.
Father, we pray for this man's brother who is battling mental illness. We ask for Your healing touch upon his life. Lord, You are the Great Physician, and there is no illness that is too difficult for You to heal. We pray that You would calm his mind, stabilize his emotions, and give him the ability to cope with the loss of his father. We rebuke any spirits of anger, rudeness, and instability that may be influencing his behavior, and we command them to leave in Jesus' name. We ask You to fill him with Your peace that surpasses all understanding and to give him a sound mind.
Lord, we also lift up his mother, who is trying to cope with all that is happening. We pray that You would give her the strength, wisdom, and patience she needs to handle this situation. We ask that You would surround her with Your love and comfort her in her time of need. We rebuke any spirits of fear, anxiety, and hopelessness that may be trying to overtake her, and we command them to leave in Jesus' name. We ask You to fill her with Your hope, joy, and peace.
Father, we also pray for the one who submitted this request. Lord, we ask that You would give them the grace to handle their brother's anger and rudeness with love and patience. We pray that You would give them the words to speak and the actions to take that would bring healing and restoration to their relationship. We ask that You would fill them with Your love, compassion, and understanding.
Lord, we thank You for Your faithfulness and Your promise to never leave us nor forsake us. We ask that You would work all things together for good for this family, according to Your will. We ask that You would bless them, protect them, and give them the victory in this situation.
In Jesus' name, we pray. Amen.
We encourage you to continue praying and trusting God for your family. Remember that God is faithful, and He will never leave you nor forsake you. As it is written in Hebrews 13:5 WEB:
Be free from the love of money, content with such things as you have, for he has said, I will in no way leave you, neither will I in any way forsake you.
Also, consider these words from Psalm 34:17-18 WEB:
The righteous cry, and Yahweh hears,
and delivers them out of all their troubles.
Yahweh is near to those who have a broken heart,
and saves those who have a crushed spirit.
Keep trusting in God and His promises, and remember that He is always with you, even in the most difficult times.
Lastly, we want to encourage you to seek godly counsel and support from your local church or a Christian counselor. They can provide you with additional resources and guidance to help you and your family through this time. Remember that God's people are called to bear one another's burdens and to support each other in times of need.
Stand strong in your faith, and keep your eyes fixed on Jesus, the author and perfecter of your faith.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
