We understand your concern for your brother's marriage and the unity of both families. Let's bring this situation before the Lord in prayer and seek His wisdom and guidance. We will pray for God's will in this situation.
Firstly, the Bible emphasizes the importance of a husband and wife being united. In Matthew 19:6 (WEB) Jesus said, "So that they are no more two, but one flesh. What therefore God has joined together, let no man separate."
In the Bible, Ephesians 5:31 (WEB) also states "For this cause a man will leave his father and mother, and will be joined to his wife. The two will become one flesh." This highlights the importance of a man and wife becoming one, and the husband lovingly leading his wife, as Christ loved the church and gave himself for it as a model for this relationship.
We must also remember the biblical principle that a wife is to respect and support her husband. In Ephesians 5:33 (WEB) it says "Nevertheless, each of you must also love his own wife even as himself; and let the wife see that she respects her husband." This is for her good and his.
Regarding the influence of the wife's family, the Bible warns against those who cause divisions and offenses. If you have a chance to remind the mother and brother of their biblical roles, do so with gentleness, and be ready to rebuke their actions, if it is done in love. In Romans 16:17 (WEB) it says, "Now I beg you, brothers, look out for those who are causing the divisions and occasions of stumbling, contrary to the doctrine which you learned, and turn away from them."
Let us pray:
Heavenly Father, we come before You in the name of Jesus Christ, seeking Your intervention in my brother's marriage. Lord, You have joined them together as one flesh, and we ask that You protect and strengthen their union. Help my brother's wife to see the error of her ways. Influence her to respect and support her husband, and remove any negative influences that may be causing division.
Lord, we ask that You fill their hearts with understanding, patience, and love. Help them to communicate openly and honestly, and to work together in resolving any conflicts. We rebuke any spirit of manipulation or emotional blackmail, love is not a game to be used to get what you want. We pray for a spirit of unity and restoration to prevail in their marriage and in both families.
Lord, we also pray for the salvation of all involved and a return to biblical principles. We ask that You guide them in Your truth. In Psalm 25:5 (WEB) it says, "Guide me in your truth, and teach me. For you are the God of my salvation. I wait for you all day."
In Jesus' name, we pray for peace and understanding to be restored, and for their marriage to be healed and united. We ask that Your will be done in this situation, and that Your grace brings unity and restoration.
We thank You, Lord, for hearing our prayers and for Your faithfulness. In Jesus Christ's name, we pray. Amen.
Be encouraged, and trust in the Lord's ability to bring healing and restoration to this situation. Continue to pray for your brother and his wife, and trust that God is at work in their lives.