Why is the concept of being gathered together in one important for Christians?

The idea of being gathered together in one is central to understanding the nature of the Church and the purpose of Christ's atonement. John 11:52 declares that Jesus' death was to 'gather together in one the children of God that were scattered abroad.' This gathering reflects the unity and communion of believers, transcending cultural and social divisions, as seen in Ephesians 4:4-6 where it states, 'There is one body, and one Spirit, even as ye are called in one hope of your calling.' This unity serves as a testament to God's saving work, reminding Christians that they are part of a larger family under Christ's headship, which encourages fellowship, accountability, and collaborative ministry in advancing the Gospel.