Romans 12:5

In the same way, though we [Christians] are many, we are one [spiritual] body in [fellowship with] Christ, and each one of us is part of [all] the others.

1 Corinthians 10:17

Inasmuch as there is one loaf of bread that we all share, we who are many make up one body [of believers].

1 Corinthians 12:20

But the way it is, there are many parts, but one body.

Ephesians 4:25

So then, put away lying and [Zech 8:16], "Each one should speak truthfully with his neighbor," because we are parts of one another [i.e., in the one body].

Romans 12:4

For there are many parts to a single human body and all of these parts do not have the same function.

1 Corinthians 10:33

For even I myself [try] to please everyone in every way, and not to look out [just] for my own good, but [also] for the good of many people, so that they may be saved.

1 Corinthians 12:12-14

For [just] as the human body is one [unit], made up of many parts, and all the many parts make up a single body, so it is with Christ. [Note: Just as a human body is a single unit, and Christ is a single being, so the members of His body, the church, constitute one body. See verses 27-28].

1 Corinthians 12:27-28

Now you people are the [spiritual] body of Christ and each one of you is an individual part of it.

Ephesians 1:23

which is His [spiritual] body. The church is completely filled by Christ [or, "Christ is completely filled by God"], who completely fills everything in every way.

Ephesians 5:23

For the husband is the [spiritual] head over his wife, just as Christ is also the [spiritual] head over the church, since He is the Savior of the body.

Ephesians 5:30

because we are parts of His [spiritual] body.

Colossians 1:24

Now I rejoice in [spite of] my sufferings for your sake, and I am filling up [i.e., completing] in my physical body what was lacking in the afflictions Christ endured for His body's sake, the church.

Colossians 2:19

He is not holding on [firmly] to the head [i.e., Christ, the head of the church], from whom the entire body, being nourished and supported by its ligaments and joints, is caused to grow in size by God.

Treasury of Scripture Knowledge

Summary

So we, being many, are one body in Christ, and every one members one of another.

Bible References

General references

Romans 12:4
For there are many parts to a single human body and all of these parts do not have the same function.
1 Corinthians 10:17
Inasmuch as there is one loaf of bread that we all share, we who are many make up one body [of believers].
1 Corinthians 12:12
For [just] as the human body is one [unit], made up of many parts, and all the many parts make up a single body, so it is with Christ. [Note: Just as a human body is a single unit, and Christ is a single being, so the members of His body, the church, constitute one body. See verses 27-28].
Ephesians 1:23
which is His [spiritual] body. The church is completely filled by Christ [or, "Christ is completely filled by God"], who completely fills everything in every way.
Ephesians 4:25
So then, put away lying and [Zech 8:16], "Each one should speak truthfully with his neighbor," because we are parts of one another [i.e., in the one body].
Ephesians 5:23
For the husband is the [spiritual] head over his wife, just as Christ is also the [spiritual] head over the church, since He is the Savior of the body.
Colossians 1:24
Now I rejoice in [spite of] my sufferings for your sake, and I am filling up [i.e., completing] in my physical body what was lacking in the afflictions Christ endured for His body's sake, the church.
Colossians 2:19
He is not holding on [firmly] to the head [i.e., Christ, the head of the church], from whom the entire body, being nourished and supported by its ligaments and joints, is caused to grow in size by God.