Summary of passages: Romans 12:4-5: All Christians form the body of Christ, acting as a whole with different functions.
Ephesians 4:1-6: Paul urges us to live a life worthy of Christ. Be humble, gentle, patient, and bear with one another in love. Be peaceful and unified. Be one body along with the One God, One Spirit, and One Son.
Questions:
9) Believers are the body of Christ and it is Christ who unites us all.
10) By peace. Through humility, gentleness, patience, and love.
11) Personal Question. My answer: Living a Godly life is how I promote unity. Doing my part in God’s will in the way I interact with others and lead my life.
Conclusions: Didn’t get much out of the questions, but Paul’s exhortations are clear: it is our responsibility as Christians to keep the unity amongst us and not let petty arguments/sin/Satan/the world divide us. We are to keep Christ in the forefront always and forever.
End Notes: Romans 12:4-5: The church is a unified whole with distinct members. In the body of Christ there is unity but not uniformity (unity within diversity). There is a delicate balance between unity and individuality. Both co-exist but not at the expense of the other. Christ is our common ground.
Ephesians 4:1-6: We should want to walk in God’s way and serve Him out of gratitude for all He has done for us. It is God’s love that fuels us.
Let God be in control (humility). Forgive one another out of love and peace as in this world we will inevitably sin against others.
This is spiritual unity, not structural unity i.e. unity of different denominations, etc. The complete fusion of all churches would inevitably lead to corruption (think Catholicism in the Middle Ages).
We have unity because of what we share in common. In Jesus we share one body, one Spirit, one hope of our calling, one Lord, one faith, one baptism, and one Father.
The baptism here is a baptism of water, an outward sign of acceptance of Christ into the soul.
Fun Fact: Christianus sum, I am a Christian in Latin. How Martin Luther answered all temptations from Satan.