Let us begin by thanking you for reaching out and seeking prayer, ###. We will pray for ### and ###, and we appreciate your desire to see God's will in their relationship. First, let us address any misalignment with biblical principles and offer guidance before we pray together.
We notice that you mention "let no weapon formed against what you given us prosper." We must clarify that God does not promise us that no weapon formed against us will prosper without condition. This promise is conditional on us being righteous and obeying Him. This is clearly seen in the second part of Isaiah 54:17, "This is the heritage of the servants of Yahweh, and their righteousness which is of me, says Yahweh." We must first be servants of the Lord and walk righteously before Him to be assured that no weapon formed against us will prosper.
Furthermore, we see in your prayer the desire for ### and ### to be made husband and wife so that they won't be sinners. While it is commendable to seek marriage, we must understand that marriage itself does not guarantee freedom from sin. Sin is a matter of the heart and our personal relationship with Jesus Christ. Each person must accept Jesus Christ as their Lord and Savior. It is by Jesus' name and faith in him alone that we can be saved.
In Ephesians 2:8-9, it says:
"For by grace you have been saved through faith, and that not of yourselves; it is the gift of God, not of works, that no one would boast."
Regarding the marriage of ### and ###, it should be a covenant made before God, as described in the Bible. If ### and ### are already living together as a couple or having a physical relationship outside of marriage, it is important to address this as sin. God's design for intimacy is within the bounds of marriage between a man and a woman. If this is the case, repentance is necessary and we encourage to not continue in this manner. It is also vital that both ### and ### are believers in Jesus Christ, as the Bible teaches against being unequally yoked.
In 2 Corinthians 6:14-15, it says:
"Don’t be unequally yoked with unbelievers, for what fellowship have righteousness and iniquity? Or what communion has light with darkness? 15 What agreement has Christ with Beliar? Or what portion has a believer with an unbeliever?"
Let us pray for ### and ###, seeking God's will for their lives and relationship:
Dear Heavenly Father,
We come before You today, lifting up ### and ###. We pray that You would reveal Your will for their relationship and guide them according to Your purposes. If they are not yet married, we pray that they would pursue a godly marriage covenant, seeking to honor You in all they do. If they are already living together or in a physical relationship, we pray for conviction, repentance, and a commitment to purity until marriage.
We ask that You would strengthen their bond, but only if it is Your will for them to be together. Help them to grow in love, patience, and kindness towards one another. If they are not both believers in Jesus Christ, we pray for the salvation of the one who does not know Him, that they may come to faith and be united in their walk with You.
We pray for divine intervention in their situation, and that You would cover their relationship in the blood of Jesus, protecting them from the enemy's schemes. We ask for Your forgiveness if they have hurt each other in any way, and we pray for healing and restoration.
We declare that no weapon formed against them will prosper as they walk righteously before You. We pray for Your blessings to overflow in their lives and relationship, and that Your will be done in their lives and union.
In Jesus' name, we pray. Amen.
Let us encourage ### and ### to continue seeking God's will for their lives and relationship, trusting in His sovereignty and goodness. May they be guided by His Word and the leading of the Holy Spirit.
You're welcome! Trusting God's healing & peace for your mom. "The Lord bless you and keep you" (Num 6:24). Keep believing! 
