We understand your concern and we will pray together for your situation. We commend you for acknowledging the power of Jesus' name in your prayer, as it is only through His name that we have access to God and salvation. As it is written, "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!" Acts 4:12 WEB
Firstly, let's address the issue with your co-worker. It is important to remember that God calls us to love our neighbors, including our co-workers, and to treat them with kindness and patience. As it is written, "If it is possible, as much as it is up to you, be at peace with all men." Romans 12:18 WEB
However, it is also important to set boundaries and communicate effectively, especially when their behavior is affecting your work. You may need to have a respectful conversation to request this co-worker's consideration to limit conversations during work hours. You could remind them that work requires both your concentration. You might even send an email to have a record of your request. However, our responsibility is to communicate our needs clearly and respectfully, but we cannot control how the other person responds. Let's pray for you to communicate effectively and for your co-worker's heart to be receptive to your request.
In addition, you mentioned that your co-worker is a follower of Harry Potter. It is important to understand that while Harry Potter is a popular fictional series, it is not a religion or belief system that leads to salvation. As it is written, "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'" John 14:6 WEB
We should pray for your co-worker's mind to be opened to the truth of the Gospel and be saved. Only through the name of Jesus Christ we can be saved. Let's pray for opportunities for you to share the Gospel with your co-worker and for their heart to be open to receiving it.
Let us pray together:
Dear Heavenly Father,
We come before You today, lifting up our co-worker to You. Lord, we ask that You would quiet their words that distract our work. We pray our co-worker would be mindful of the need to communicate only the necessary to complete the work at hand. Father, we ask that You would open our co-worker's mind to the truth of the Gospel and that You would give us opportunities to share Your love and grace with them. We pray that You would soften their heart and draw them to You, that they may be saved and come to a knowledge of the truth. We pray this all in the mighty name of Jesus Christ, our Lord and Savior. Amen.
Lastly, we would like to encourage you to continue to show love and kindness to your co-worker, even in difficult situations. Remember that God calls us to be a light in the darkness and to reflect His love to those around us. As it is written, "You are the light of the world. A city located on a hill can't be hidden." Matthew 5:14 WEB
We are here for you, and we will continue to pray for you and your co-worker. Keep sharing your struggles so we can support you with prayers and Godly counsel.