We are truly sorry to hear about the situation your brother is facing. We will stand with you in prayer and trust that God will intervene in this matter. We are also concerned about the relationship with the girlfriend, since fornication is a sin.
Firstly, we commend you for praying in the name of Jesus, as this is the only way we have access to God the Father. 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."
Let's pray together:
Dear Heavenly Father,
We come before You today, lifting up our brother who is currently in jail due to false accusations. Lord, You know the truth in this situation, and we ask that You intervene and grant him favor with the judge and all parties involved. We pray that the case will be dismissed on Friday, and that he will be released and able to return to his job and normal life.
Lord, we also pray for his ex-girlfriend. We pray that she may come to repentance for her sins. Also, we pray that your brother will also seek forgiveness for his sins against you including any sexual sins that may have been committed before marriage. We pray that he will seek a wife to marry in the Lord, not live in a rebellious relationship. Lord, we ask that You turn this situation into an opportunity for spiritual growth and restoration. As stated in Romans 8:28 WEB: "We know that all things work together for good for those who love God, to those who are called according to his purpose."
Father, we also ask for Your comfort and peace for our brother who has been stressed, worried, and experiencing anxiety attacks. We pray that You will surround him with Your love and remind him of Your faithfulness. As written in Philippians 4:6-7 WEB: "In nothing be anxious, but in everything, by prayer and petition with thanksgiving, let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your thoughts in Christ Jesus."
We ask all these things in the mighty name of Jesus Christ. Amen.
We encourage you to continue trusting in God and His perfect will. Remember that He is faithful and that He cares for you and your brother. As promised in 1 Peter 5:7 WEB: "Casting all your worries on him, because he cares for you."
Lastly, we want to address the issue of the relationship that led to this situation. We strongly encourage your brother to seek godly counsel and to pursue relationships that align with biblical principles. As stated in 2 Corinthians 6:14 WEB: "Don’t be unequally yoked with unbelievers, for what fellowship have righteousness and iniquity? Or what fellowship has light with darkness?"
We will continue to keep you and your brother in our prayers, trusting that God will work everything out for good.
Prayer Focus: God, Thank You for loving me. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. 
