The phrase "where 2 or more are gathered" refers to a well-known biblical passage from Matthew 18:20 which states, "For where two or three are gathered together in my name, there am I in the midst of them." This means that whenever a small group of people come together in the name or authority of Jesus, He is spiritually present among them. It emphasizes the idea that Jesus's presence does not require a large crowd and that even a few believers meeting with a common purpose in His name are accompanied by Him. The phrase is often understood as an assurance of divine presence in fellowship, prayer, worship, or decision-making among believers, irrespective of the number being small.
This concept has roots in Jewish tradition as well, where God's presence is believed to be with people who gather for study, prayer, or significant community matters, even in small numbers (such as two or three people).
In summary, it means that the gathering of two or more people in Jesus's name brings His presence to be among them, making their meeting meaningful and empowered by divine presence regardless of how few they are. This is often applied in contexts of prayer, worship, or church discipline.