Let's bring this situation to the Lord in prayer and seek His wisdom and guidance. The Bible tells us that God desires unity and reconciliation among His children. As it says in Romans 12:18, "If it is possible, as much as it is up to you, be at peace with all men."
Firstly, it's important to acknowledge that the root of this issue is a lack of respect and communication. Both parties feel disrespected, and this has caused a rift that has affected not only the brothers but their families as well. This is a clear example of how strife can spread and cause division, as warned in Proverbs 6:19, "He who sows discord among brothers."
Let's pray for these brothers and their families:
"Father, we come before You in the name of Jesus, lifting up these two brothers and their families. We know that this is not Your will for them, and we ask that You bring healing and reconciliation. Lord, You know the hearts of these brothers. You understand the root of this discord. We pray that You would soften their hearts, Lord. Give them the humility to forgive and ask for forgiveness. Open the lines of communication between them, and help them to see each other through Your eyes.
Lord, we also lift up the wives. We pray that You would fill them with Your love and wisdom. Help them to be peacemakers, as blessed are the peacemakers, for they shall be called children of God Matthew 5:9.
We pray for the son who has been drawn into this conflict. Lord, give him a heart of understanding and forgiveness. Help him to honor and respect his elders, as Your word instructs us in Leviticus 19:32.
Father, we also pray for my husband. Give him the wisdom to know how to be a friend to both brothers without showing favoritism. Help him to be a light in this situation, pointing these brothers to You.
In the name of Jesus Christ, we pray for unity and love to prevail. We ask that You would heal these relationships and bring these brothers together in love and harmony. We pray for conviction and forgiveness. We ask that You would use this situation for Your glory. Give them the grace to reconcile and the courage to do it. We thank You for Your faithfulness and Your love.
Lastly, we pray for anyone involved to turn to Jesus Christ. It is only in Jesus that we have access to God and can be saved. Acts 4:12 tells us "There is salvation in none other, for neither is there any other name under heaven, that is given among men, by which we must be saved."
In Jesus' name, we pray. Amen."
As for your husband, encourage him to be a peacemaker and a light in this situation. He can pray for both brothers and their families. He can also reach out to them, encouraging them to seek reconciliation and forgiveness. Remind him of the words in Romans 12:18-19, "If it is possible, as much as it is up to you, be at peace with all men. Don't seek revenge yourselves, beloved, but give place to God's wrath."
If appropriate, your husband can also offer to mediate a peaceful meeting between the brothers, ensuring that it is a safe space for open and respectful communication.
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. 
