Ephesians 3:6

to wit , that the Gentiles are fellow-heirs, and fellow-members of the body, and fellow-partakers of the promise in Christ Jesus through the gospel,

Galatians 3:14

that upon the Gentiles might come the blessing of Abraham in Christ Jesus; that we might receive the promise of the Spirit through faith.

Romans 8:15-17

For ye received not the spirit of bondage again unto fear; but ye received the spirit of adoption, whereby we cry, Abba, Father.

Romans 12:4-5

For even as we have many members in one body, and all the members have not the same office:

1 Corinthians 12:12

For as the body is one, and hath many members, and all the members of the body, being many, are one body; so also is Christ.

1 Corinthians 12:27

Now ye are the body of Christ, and severally members thereof.

Galatians 4:5-7

that he might redeem them that were under the law, that we might receive the adoption of sons.

Ephesians 2:13-22

But now in Christ Jesus ye that once were far off are made nigh in the blood of Christ.

Ephesians 4:15-16

but speaking truth in love, we may grow up in all things into him, who is the head, even Christ;

Ephesians 5:7

Be not ye therefore partakers with them;

Ephesians 5:30

because we are members of his body.

Colossians 2:19

and not holding fast the Head, from whom all the body, being supplied and knit together through the joints and bands, increasing with the increase of God.

1 John 1:3

that which we have seen and heard declare we unto you also, that ye also may have fellowship with us: yea, and our fellowship is with the Father, and with his Son Jesus Christ:

1 John 2:25

And this is the promise which he promised us, even the life eternal.

Galatians 3:26-29

For ye are all sons of God, through faith, in Christ Jesus.

Treasury of Scripture Knowledge

Summary

That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel:

Bible References

The same

Ephesians 4:15
but speaking truth in love, we may grow up in all things into him, who is the head, even Christ;
Ephesians 5:30
because we are members of his body.
Romans 12:4
For even as we have many members in one body, and all the members have not the same office:
1 Corinthians 12:12
For as the body is one, and hath many members, and all the members of the body, being many, are one body; so also is Christ.
Colossians 2:19
and not holding fast the Head, from whom all the body, being supplied and knit together through the joints and bands, increasing with the increase of God.

General references

Isaiah 19:23
In that day shall there be a highway out of Egypt to Assyria, and the Assyrian shall come into Egypt, and the Egyptian into Assyria; and the Egyptians shall worship with the Assyrians.
Luke 13:29
And they shall come from the east and west, and from the north and south, and shall sit down in the kingdom of God.
Romans 3:29
Or is God the God of Jews only? is he not the God of Gentiles also? Yea, of Gentiles also:
Philippians 1:5
for your fellowship in furtherance of the gospel from the first day until now;

American Standard Version Public Domain