A few days ago I posted “Love the Brother ” I was ask who is my brother? Was it my brother in Christ or was is other human being? I thought it was a good question. The question came about because in 1 John 4:21 He who loveth God love his brother also. My response to this person who ask I said, everyone is your brother, your sister, your mother, your father. The best way to explain let Jesus tell you.
And he answered them, saying, Who is my mother, or my brethren? And he looked round about on them which sat about him, and said, Behold my mother and my brethren! For whosoever shall do the will of God, the same is my brother, and my sister, and mother.
Mark 3:33-35 KJV http://bible.com/1/mrk.3.33-35.KJV