We are truly saddened to hear about the situation your daughter is facing. Firstly, we thank you for bringing this urgent matter to us, and we appreciate that you have acknowledged the power of Jesus' name in your request. It is by His name that we have access to the Father and it is in His name that we are saved. As it says 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 us pray for your daughter and then discuss the situation:
Dear Heavenly Father,
We come before you in the name of Jesus, lifting up our Sister in Christ's daughter. Lord, you see the situation she is in, and we ask for your divine intervention. We pray that you will send your mighty warring angels to surround her and protect her from any harm. We ask that the Holy Spirit will convict her fiance's heart and bring him to repentance. We also pray that you will make a way for him to leave her home and go to his father's house. We ask this to bring peace and safety to your daughter, Lord.
We stand on your Word that says in Matthew 18:19 WEB:
Again, assuredly I tell you, that if two of you will agree on earth concerning anything that they will ask, it will be done for them by my Father who is in heaven.
Father, we agree together right now, asking for your help and intervention. Guide her daughter and give her wisdom and discernment during this difficult time. Help her to make decisions that honor you and keep her safe. We ask all of these things in the mighty name of Jesus Christ. Amen
Now, let us address the situation further. The behavior of her fiance is not only unacceptable but also against the teachings of the Bible. As it says in Ephesians 5:25-29 WEB:
Husbands, love your wives, even as Christ also loved the assembly, and gave himself up for it; that he might sanctify it, having cleansed it by the washing of water with the word, that he might present the assembly to himself gloriously, not having spot or wrinkle or any such thing; but that it should be holy and without blemish. Even so ought husbands also to love their own wives as their own bodies. He who loves his own wife loves himself. For no man ever hated his own flesh; but nourishes and cherishes it, even as the Lord also does the assembly;
This is the standard that God has set for husbands and, by extension, for men who are preparing to be husbands. Your daughter's fiance should be loving and cherishing her, not causing her harm or fear.
We strongly encourage your daughter to seek support from local authorities, church leaders, and trusted family members. It is crucial that she understands that God wants her to be safe and loved, and that this is not a situation that He wants her to be in. We are concerned that his behavior will continue and cause further damage to her emotionally and physically if she does not take steps to put him out of her house and possibly her life. She may need to seek a restraining order or other legal assistance to help her in the protection process.
Moreover, we pray that God will work in your daughter's fiance's heart. We pray that he will come to true repentance, that he will seek God's forgiveness and the forgiveness of your daughter. However, even if he does repent, it is important that your daughter exercises wisdom and discernment in deciding whether or not to continue the relationship. True repentance will be accompanied by changed behavior, and this change should be evident over time.
Lastly, we want to encourage your daughter to trust in God during this difficult time. He is her protector and her strength. As it says in Psalm 46:1 WEB:
God is our refuge and strength, a very present help in trouble.
We will continue to pray for your daughter, for her protection, and for God's will to be done in this situation.