As Christ followers, understanding God as our Father allows us to view one another as family. We were once the unregenerate objects of God's wrath (Eph. 2), but through the work of Christ we are adopted as sons and daughters; children of God (Rom. 8:16), something we could never accomplish on our own.
Because the work of Jesus has made us family, we seek to model to the world around us what the redemptive family of God should look like!