The heaviness you are feeling is not imaginary, and it is not small. What you describe is a coordinated assault from the enemy on multiple fronts at once. When a marriage, a sibling’s faith, and your own hope all come under siege in the same season, you are right to call it spiritual warfare. And it is not because God has abandoned you. It is because the enemy knows how much is at stake. He hates marriage because it speaks of Christ and his church. He hates faith because faith lays hold of the only salvation there is. So he aims his cruelty at the relationships that matter most, trying to convince you that God does not see and does not care. That is the oldest lie in his arsenal, and you must not let it take root.
The most important thing for your husband, your sister, your siblings, and you is not simply that the storms calm down, but that each soul comes into a life-changing relationship with Jesus Christ. Believing in God in a general way is not enough; even the demons believe and tremble. Salvation is found in believing into Jesus, into a vital union with him, where he becomes your Lord and your life. That is the great miracle God wants to work, far greater than any temporary repair. When Jesus set the man possessed by a legion of demons free, the man was found sitting at Jesus’ feet, clothed and in his right mind. The whole town saw what the Lord had done. That same authority over the powers of darkness has not lessened. Jesus still speaks, and the unclean things must leave. Keep bringing your family before him, not just for a change in behavior but for a true conversion, the kind that shows itself in repentance and a turned-around life.
Your part right now is not to manipulate outcomes or to carry the weight as though it all depends on you. Fasting, praying, hoping, and keeping faith are not wasted, even when the battle rages on. The enemy whispers that you have failed too many times, that God is through with you, that your efforts are pointless. Do not believe it. He knows your frame. He remembers that you are dust, and he looks on you with compassion, not impatience. Think of the woman suffering for twelve years, her body weakening, with no human help left. She was determined. She pressed through the crowd just to touch the edge of his garment, and Jesus called her “daughter” and gave her peace. Your determination is not invisible to him. He sees every prayer, every tear.
The bond of marriage is meant to be a compound unity, two becoming one. That oneness is under direct attack, and it is devastating when one person keeps walking out. But remember that the Lord is the true Redeemer of the family. When a lineage seemed dead, he raised up a kinsman-redeemer to restore what was broken. He is able to bring restoration that goes deeper than human willpower. Keep praying for the heavens to open over your home, yes, but also rest in this: your husband’s ultimate need is the same as yours, a saving encounter with Jesus that he cannot walk away from. While you wait, do not let the darkness convince you that you are alone. The family of God, those bonded together by the Spirit through faith in Christ, is often closer than blood ties during seasons like this. Let faithful believers uphold you. Let them be the hands and voice of Jesus to you when your own strength is gone.
The enemy is a destroyer, but he is already defeated. Jesus demonstrated that in every miracle, every deliverance, and finally at the cross. His name is above every black magic, every doubt, every nihilistic lie. Keep speaking that name. Keep asking for the miracle of salvation in your whole household. The Lord who calmed the sea is in the boat with you, even if he seems asleep. He will rise and rebuke the wind and the waves again. You are not asking for something too hard for him.