Ephesians 3:6

to be specific, 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

in order that in Christ Jesus the blessing of Abraham might come to the Gentiles, so that we would receive the promise of the Spirit through faith.

Romans 8:15-17

For you have not received a spirit of slavery leading to fear again, but you have received a spirit of adoption as sons by which we cry out, “Abba! Father!”

Romans 12:4-5

For just as we have many members in one body and all the members do not have the same function,

1 Corinthians 12:12

For even as the body is one and yet has many members, and all the members of the body, though they are many, are one body, so also is Christ.

1 Corinthians 12:27

Now you are Christ’s body, and individually members of it.

Galatians 4:5-7

so that He might redeem those who were under the Law, that we might receive the adoption as sons.

Ephesians 2:13-22

But now in Christ Jesus you who formerly were far off have been brought near by the blood of Christ.

Ephesians 4:15-16

but speaking the truth in love, we are to grow up in all aspects into Him who is the head, even Christ,

Ephesians 5:7

Therefore do not be partakers with them;

Ephesians 5:30

because we are members of His body.

Colossians 2:19

and not holding fast to the head, from whom the entire body, being supplied and held together by the joints and ligaments, grows with a growth which is from God.

1 John 1:3

what we have seen and heard we proclaim to you also, so that you too may have fellowship with us; and indeed our fellowship is with the Father, and with His Son Jesus Christ.

1 John 2:25

This is the promise which He Himself made to us: eternal life.

Galatians 3:26-29

For you 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 the truth in love, we are to grow up in all aspects into Him who is the head, even Christ,
Ephesians 5:30
because we are members of His body.
Romans 12:4
For just as we have many members in one body and all the members do not have the same function,
1 Corinthians 12:12
For even as the body is one and yet has many members, and all the members of the body, though they are many, are one body, so also is Christ.
Colossians 2:19
and not holding fast to the head, from whom the entire body, being supplied and held together by the joints and ligaments, grows with a growth which is from God.

General references

Isaiah 19:23
In that day there will be a highway from Egypt to Assyria, and the Assyrians will come into Egypt and the Egyptians into Assyria, and the Egyptians will worship with the Assyrians.
Luke 13:29
And they will come from east and west and from north and south, and will recline at the table in the kingdom of God.
Romans 3:29
Or is God the God of Jews only? Is He not the God of Gentiles also? Yes, of Gentiles also,
Philippians 1:5
in view of your participation in the gospel from the first day until now.