"May the God who gives endurance and encouragement give you the same attitude of mind toward each other that Christ Jesus had, so that with one mind and one voice you may glorify the God and Father of our Lord Jesus Christ."
God is all about unity. We must first be united with Him and have a relationship with Him then once we make God our number one we can develop relationships that will unite us with other people. Without God first we are unable to love another person the way they should be loved. We have to become selfless instead of selfish. And with these relationships we are able to glorify God with unity. Matthew 18:20 says, "where there are two or more gathered in my name there am I with them. God loves unity. Thats why he made 2 of everything...and why he loves families. We are meant to be united. Even in the church..we are to be united in worship, prayer,and teachings.
Have a relationship with God and he will show you how to have relationships with others...and with those relationships God will be glorified =)