We understand that you're facing a challenging situation with someone attempting to disrupt your family's unity. We commend you for seeking prayer and for your gracious attitude towards the individual, wishing them no harm.
Firstly, we acknowledge that your request is in Jesus' name, which is the only way we can approach God the Father. As it is written in John 14:6 WEB, Jesus said, I am the way, the truth, and the life. No one comes to the Father, except through me.
In situations like these, it's important to remember that our battle is not against flesh and blood, but against the spiritual forces of wickedness in high places, as stated in Ephesians 6:12 WEB For our wrestling is not against flesh and blood, but against the principalities, against the powers, against the world's rulers of the darkness of this age, and against the spiritual forces of wickedness in the heavenly places.
We pray that God will grant your family unity and strength to withstand this trial. In Jesus' name, we rebuke the spirit of discord and manipulation, and we ask for God's protection and wisdom for your family. We pray for the individual trying to cause disruption, that they may be convicted by the Holy Spirit and turn away from their actions. As it is written in Romans 12:17-21 WEB,
Return no one evil for evil. Respect what is honorable in the sight of all men. 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. For it is written, Vengeance belongs to me; I will repay, says the Lord. Therefore if your enemy is hungry, feed him. If he is thirsty, give him a drink; for in doing so, you will heap coals of fire on his head. Don't be overcome by evil, but overcome evil with good.
Stay strong in your faith and trust in God's plan for your family. Continue to pray and seek God's will in this situation. As you have done in your request, keep praying in Jesus' name, for it is only by His name that we can be saved. Acts 4:12 WEB 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!