Numbers 2:2 New International Version (NIV)
2 “The Israelites are to camp around the tent of meeting some distance from it, each of them under their standard and holding the banners of their family.”
The nation of Israel was organized according to tribes for several reasons. First, it was an easier way to manage a large number of people. Next, the Promised Land would be divided according to family. Then, it was part of their culture and heritage to be known by their family and to keep detailed genealogies to document membership in God’s nation. Finally, travel would be easier. Each family followed the tribe’s standard (flag). We have been adopted into God’s family, so you are now a member of God’s nation. Your name is written in the Book of Life. When you accept Jesus as your Lord and Savior and confess your faith, you are part of God’s family.