Ephesians 3:6

I mean the truth that the Gentiles are joint heirs with us Jews, and that they form one body with us, and have the same interest as we have in the promise which has been made good in Christ Jesus through the Good News,

Galatians 3:14

Our freedom has been thus purchased in order that in Christ Jesus the blessing belonging to Abraham may come upon the nations, so that through faith we may receive the promised Spirit.

Romans 8:15-17

You have not for the second time acquired the consciousness of being--a consciousness which fills you with terror. But you have acquired a deep inward conviction of having been adopted as sons--a conviction which prompts us to cry aloud, "Abba! our Father!"

Romans 12:4-5

For just as there are in the one human body many parts, and these parts have not all the same function;

1 Corinthians 12:12

For just as the human body is one and yet has many parts, and all its parts, many as they are, constitute but one body, so it is with the Church of Christ.

1 Corinthians 12:27

As for you, you are the body of Christ, and individually you are members of it.

Galatians 4:5-7

in order to purchase the freedom of all who were subject to Law, so that we might receive recognition as sons.

Ephesians 2:13-22

But now in Christ Jesus you who once were so far away have been brought near through the death of Christ.

Ephesians 4:15-16

But we shall lovingly hold to the truth, and shall in all respects grow up into union with Him who is our Head, even Christ.

Ephesians 5:7

Therefore do not become sharers with them.

Ephesians 5:30

because we are, as it were, parts of His Body.

Colossians 2:19

Such a one does not keep his hold upon Christ, the Head, from whom the Body, in all its parts nourished and strengthened by its points of contact and its connections, grows with a divine growth.

1 John 1:3

that which we have seen and listened to we now announce to you also, in order that you also may have fellowship in it with us, and this fellowship with us is fellowship with the Father and with His Son Jesus Christ.

1 John 2:25

And this is the promise which He Himself has given us--the Life of the Ages.

Galatians 3:26-29

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 we shall lovingly hold to the truth, and shall in all respects grow up into union with Him who is our Head, even Christ.
Ephesians 5:30
because we are, as it were, parts of His Body.
Romans 12:4
For just as there are in the one human body many parts, and these parts have not all the same function;
1 Corinthians 12:12
For just as the human body is one and yet has many parts, and all its parts, many as they are, constitute but one body, so it is with the Church of Christ.
Colossians 2:19
Such a one does not keep his hold upon Christ, the Head, from whom the Body, in all its parts nourished and strengthened by its points of contact and its connections, grows with a divine growth.

General references

Luke 13:29
They will come from east and west, from north and south, and will sit down at the banquet in the Kingdom of God.
Romans 3:29
Is God simply the God of the Jews, and not of the Gentiles also? He is certainly the God of the Gentiles also,
Philippians 1:5
I thank my God, I say, for your cooperation in spreading the Good News, from the time it first came to you even until now.