Ephesians 3:6

that the heathen through union with Christ Jesus are fellow-heirs with the Jews, are members with them of the same body, and sharers with them of the promise through the good news,

Galatians 3:14

that the blessing promised to Abraham might through Jesus Christ come to the heathen, so that through faith we might receive the promised Spirit.

Romans 8:15-17

For you do not have a sense of servitude to fill you with dread again, but the consciousness of adopted sons by which we cry, "Abba," that is, "Father."

Romans 12:4-5

For just as we have many parts united in our physical bodies, and the parts do not all have the same function,

1 Corinthians 12:12

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

1 Corinthians 12:27

So you are Christ's body, and individually parts of it.

Galatians 4:5-7

to ransom those who were subject to law, so that we might be adopted as sons.

Ephesians 2:13-22

But now through your union with Christ Jesus you who were once far away have through the blood of Christ been brought near.

Ephesians 4:15-16

But, on the other hand, we shall go on holding to the truth and in love growing up into perfect union with Him, that is, Christ Himself who is the Head.

Ephesians 5:7

So you must stop having anything to do with them.

Ephesians 5:30

because we are parts of His body.

Colossians 2:19

Such a person is not continuing in connection with the Head, from which the whole body, when supplied and united through its joints and sinews, grows with a growth that God produces.

1 John 1:3

I repeat, it is what we have seen and heard that we now announce to you, so that you too may share this fellowship with us, for this fellowship that we have is with the Father and with His Son Jesus Christ;

1 John 2:25

And the very thing that He Himself has promised us is eternal life.

Galatians 3:26-29

For all of you are 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, on the other hand, we shall go on holding to the truth and in love growing up into perfect union with Him, that is, Christ Himself who is the Head.
Ephesians 5:30
because we are parts of His body.
Romans 12:4
For just as we have many parts united in our physical bodies, and the parts do not all have the same function,
1 Corinthians 12:12
For just as the human body is one and yet has many parts, and all the parts of the body, many as they are, constitute but one body, so it is with Christ.
Colossians 2:19
Such a person is not continuing in connection with the Head, from which the whole body, when supplied and united through its joints and sinews, grows with a growth that God produces.

General references

Luke 13:29
People will come from east and west, from north and south, and take their seats at the feast in the kingdom of God.
Romans 3:29
Or is He the God of Jews alone? Is He not the God of heathen peoples too? Of course, He is the God of heathen peoples too,
Philippians 1:5
for your cooperation in spreading the good news, from the first day you heard it until now.