Answer: We are members of one body, (verse 15).
MORE INFORMATION AND/OR OTHER SCRIPTURE REFERENCES:
Romans 12:4-5: "Just as each of us
has one body with many members, and these members do not all have
the same function, so in Christ we who are many form one body, and
each member belongs to all the others."
1 Corinthians 10:17: "Because there
is one loaf, we, who are many, are one body, for we all partake of
the one loaf."
1 Corinthians 12:12-13, 27: "The
body is a unit, though it is made up of many parts; and though all
its parts are many, they form one body. So it is with Christ.
For we were all baptized by One Spirit into one body--whether
Jews or Greeks, slave or free--and we were all given the One
Spirit to drink...Now you are the body of Christ, and each one
of you is a part of it."
Ephesians 2:14-22: "For He Himself
[Christ] is our peace, Who has made the two [Israel and Gentiles]
one and has destroyed the barrier, the dividing wall of hostility,
by abolishing in His flesh the law with its commandments and
regulations. His purpose was to create in Himself one new man out
of the two, thus making peace, and in this one body to reconcile
both of them to God through the cross, by which He put to death
their hostility. He came and preached peace to you who were
far away and peace to those who were near. For through Him we
both have access to the Father by one Spirit. Consequently,
you are no longer foreigners and aliens, but fellow citizens with
God's people and members of God's household, built on the
foundation of the apostles and prophets, with Christ Jesus Himself
as the chief cornerstone. In Him the whole building is joined
together and rises to become a holy temple in the Lord. And
in Him you too are being built together to become a dwelling in
which God lives by His Spirit."
Ephesians 3:6: "This mystery [of
Christ] is that through the Gospel the Gentiles are heirs together
with Israel, members together of one body, and sharers together in
the promise in Christ Jesus."
Ephesians 4:4-6: "There is one body
and One Spirit--just as you were called to one hope when you
were called--One Lord, one faith, one baptism; One God and
Father of all, Who is over all and through all and in
all."
Ephesians 4:25: "Therefore each of
you must put off falsehood and speak truthfully to his neighbor,
for we are all members of one body."
Ephesians 5:25-30: "Husbands, love
your wives, just as Christ loved the church and gave Himself up for
her to make her holy, cleansing her by the washing with water
through the Word, and to present her to Himself as a radiant
church, without stain or wrinkle or any other blemish, but holy and
blameless. In this same way, husbands ought to love their
wives as their own bodies. He who loves his wife loves
himself. After all, no one ever hated his own body, but he
feeds and cares for it, just as Christ does the church--for we
are members of His body."