We understand that you're facing significant spiritual warfare and discord, especially with neighbors, and possible demonic influences. Let's address this situation with prayer and biblical guidance.
Firstly, it's crucial to remember that our battle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms. Therefore, put on the full armor of God, so that when the day of evil comes, you may be able to stand your ground, and after you have done everything, to stand (WEB Ephesians 6:10-18).
God's word tells us not to be bound together with unbelievers; for what partnership have righteousness and iniquity? Or what fellowship has light with darkness? What agreement has Christ with Belial? Or what portion has a believer with an unbeliever? What agreement has a temple of God with idols? For we are a temple of the living God. Even as God said, I will dwell in them and walk in them. I will be their God and they will be my people. Therefore come out from among them, and be separate, says the Lord. Touch no unclean thing. I will receive you. I will be to you a Father. You will be to me sons and daughters, says the Lord Almighty (WEB 2 Corinthians 6:14-18).
Concerning the behaviors you've described, such as gossiping, accusations, harassment, and sabotage, these are indeed works of the flesh and influences of demonic spirits. The WEB Galatians 5:19-21 reminds us that the works of the flesh are obvious, which are: adultery, sexual immorality, uncleanness, lustfulness, idolatry, sorcery, hatred, strife, jealousies, outbursts of anger, rivalries, divisions, heresies, envy, murders, drunkenness, orgies, and things like these; of which I forewarn you, even as I also forewarned you, that those who practice such things will not inherit the Kingdom of God.
Let us pray:
Almighty God, we come before You in the name of Jesus Christ, covering this situation in the blood of Jesus. Lord, You see the discord, the mockery, the sabotage, and the demonic influences at work. We pray that You would bind the spirits of strife, division, and confusion, and command them to cease their activities in the name of Jesus. Lord, we pray for Your hedge of protection around this person and their family. We pray that You would expose any evil deeds and bring them to light.
Lord, we also pray for the neighbors, that You would have mercy on them and deliver them from any demonic strongholds. We pray that You would bring conviction upon their hearts and draw them to Yourself.
Father, we ask for Your peace to reign in this situation. Help this person to stand firm in their faith. Help them to forgive and bless those who curse them. Help them to put on the full armor of God daily and to remain steadfast in prayer. Remind them of Your love and promises, and give them the strength to endure and overcome in Jesus name.
Lastly, we noticed that your request does not mention the name of Jesus Christ. It is only by the name of Jesus that we have access to God. "For there is one God, and one mediator between God and men, the man Christ Jesus," (WEB 1 Timothy 2:5). "Whoever will call on the name of the Lord will be saved." (WEB Romans 10:13). If you are not sure about the basic salvation message of believing in Jesus Christ, confessing your sins, repenting, being baptized, and living for God, please discuss or ask about this vital matter.