Ephesians 3:6

that the nations be fellow-heirs, and of the same body, and partakers of His promise in the Christ, through the good news,

Galatians 3:14

that to the nations the blessing of Abraham may come in Christ Jesus, that the promise of the Spirit we may receive through the faith.

Romans 8:15-17

for ye did not receive a spirit of bondage again for fear, but ye did receive a spirit of adoption in which we cry, 'Abba -- Father.'

Romans 12:4-5

for as in one body we have many members, and all the members have not the same office,

1 Corinthians 12:12

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

1 Corinthians 12:27

and ye are the body of Christ, and members in particular.

Galatians 4:5-7

that those under law he may redeem, that the adoption of sons we may receive;

Ephesians 2:13-22

and now, in Christ Jesus, ye being once afar off became nigh in the blood of the Christ,

Ephesians 4:15-16

and, being true in love, we may increase to Him in all things, who is the head -- the Christ;

Ephesians 5:7

become not, then, partakers with them,

Ephesians 5:30

because members we are of his body, of his flesh, and of his bones;

Colossians 2:19

and not holding the head, from which all the body -- through the joints and bands gathering supply, and being knit together -- may increase with the increase of God.

1 John 1:3

that which we have seen and heard declare we to you, that ye also may have fellowship with us, and our fellowship is with the Father, and with His Son Jesus Christ;

1 John 2:25

and this is the promise that He did promise us -- the life the age-during.

Galatians 3:26-29

for ye are all sons of God through the 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
and, being true in love, we may increase to Him in all things, who is the head -- the Christ;
Ephesians 5:30
because members we are of his body, of his flesh, and of his bones;
Romans 12:4
for as in one body we have many members, and all the members have not the same office,
1 Corinthians 12:12
For, even as the body is one, and hath many members, and all the members of the one body, being many, are one body, so also is the Christ,
Colossians 2:19
and not holding the head, from which all the body -- through the joints and bands gathering supply, and being knit together -- may increase with the increase of God.

General references

Isaiah 19:23
In that day is a highway out of Egypt to Asshur, And come in have the Assyrians to Egypt, And the Egyptians into Asshur, And the Egyptians have served with the Assyrians.
Luke 13:29
and they shall come from east and west, and from north and south, and shall recline in the reign of God,
Romans 3:29
The God of Jews only is He, and not also of nations?
Philippians 1:5
for your contribution to the good news from the first day till now,