"For whoever does the will of God, he is my brother and sister and mother." - Mark 3:35
What really is "family"? We are told by some that it's all about our blood line and ancestors. As a result there can often be a dramatic and tenacious loyalty to the "family" over all other relationships. Some people will refuse to embrace Christ as Savior because they are afraid of offending the "family". The will of God becomes secondary to the will of the family.
Our Lord was raised in a godly family. As a young boy we are told in Luke 2:51 that "he went down with them and came to Nazareth and was submissive to them. And his mother treasured up all these things in her heart." But in time submission to God the Father became priority. This was so significant that He spoke of being a member of a new "family". His brothers and sisters were not just those who adhered to family loyalty, but were those who did the will of God.
You too have a "family" my friend. And your family is one that can be traced through a very significant "blood-line". Your eternal brothers and sisters are those that are washed in the blood of the Lord Jesus. While your earthly "family" is of great value, remember that the most important family members are those who do the will of God above all else.