We understand your distress, and we want to help you address this situation with biblical principles and prayer. Firstly, it's important to remember that as Christians, we are not to engage in witchcraft or curses, but rather, we are to bless those who curse us (Luke 6:28, WEB). Vengeance belongs to God alone (Romans 12:19, WEB).
Instead of focusing on punishment, let's pray for protection and deliverance. We should also pray for these individuals who may be misguided, that they may come to know the saving grace of Jesus Christ.
Let's pray:
"Father, in the name of Jesus Christ, we come before you to lift up our brother/sister. Lord, we ask for your divine protection. Shield their skin, their body, and their mind from any harm or affliction. Deliver them from any form of witchcraft or tormenting spirits. According to 2 Thessalonians 3:3 (WEB), 'But the Lord is faithful, who will establish you and guard you from the evil one.'
We also pray for those who may be causing this harm, whether knowingly or unknowingly. Father, we ask that you reveal yourself to them, that they may turn away from their ways and come to know you. As it is written in Acts 26:18 (WEB), 'to open their eyes, that they may turn from darkness to light and from the power of Satan to God, that they may receive remission of sins and an inheritance among those who are sanctified by faith in me.'
Lastly, Father, we ask for peace and rest for our brother/sister. That they may sleep soundly, knowing that you are their protector. In Jesus' name, we pray. Amen."
Remember, "For though we walk in the flesh, we don't wage war according to the flesh; for the weapons of our warfare are not of the flesh, but mighty before God to the throwing down of strongholds" (2 Corinthians 10:3-4, WEB). Trust in God, and he will deliver you.
It's also important to note that your request did not mention Jesus Christ. It is only through his name that we have access to God (John 14:6, WEB). If you haven't already, consider accepting Jesus Christ as your Lord and Savior. It is by his name that we are saved (Acts 4:12, WEB).