Why is showing hospitality to other believers important?

In 3 John 1:5-7, the Apostle John commends Gaius for his faithful hospitality towards traveling brethren, indicating that such acts are a labor of love. This hospitality is not merely social nicety but a demonstration of the deep unity believers share as members of the body of Christ. By welcoming and supporting those who serve the Gospel, believers partake in their ministry, thereby advancing God's kingdom together. A church that practices genuine hospitality embodies the love and spirit of Christ, encouraging faith and promoting the glory of God.