oikos n 

1. extended family (Gr.)

2. a group of eight to fifteen people with whom you share life most closely, your sphere of greatest influence, your relational world

3. the most natural and common environment for evangelism to  occur

4. a microcosm of the world at large, for whom God sent His Son- that they would be delivered from the bondage of sin and given fullness in Christ

oikocentric adj

1. strategically centered around primary relationships 

2. having evaluated purpose through the lens of oikos

3. reflecting God’s love by reaching out to the people whom Jesus died to save 

Jesus sets apart, prepares and commissions His Church to be ambassadors for the message of the Cross, to continue His ministry of reconciliation to the lost; and He both modeled and taught a strategic formula that would facilitate that great endeavor.  From the beginning of His redemptive plan, God has consistently focused on a specific group, the oikos (as the Greeks called it) as His primary target for evangelism. That is, He primarily perpetuates His Kingdom through those close social connections that we all have, those eight to fifteen people He strategically placed around each one of us in our own relational worlds.  Throughout the New Testament, whenever God’s Spirit changed a life, a worldchanger was born.  Whether it was a demon possessed man, a swindler named Zacchaeus, a royal official with a dying son, a tax collector named Matthew, a Centurion named Cornelius, a businesswoman named Lydia or a recently unemployed Philippian jailor, they all were sent back home to their oikos.  While different cultures and generations reflect unique qualities, the oikos phenomenon remains a constant, a core characteristic of humanity’s hardwiring.