Colossians 4:11

Jesus, who is called Justus, also sends his greetings. These men are the only Jews among my fellow-workers for God's kingdom; they have proved to be an encouragement to me.

Acts 11:2

And when Peter came up to Jerusalem, those [believers] of Jewish descent began to argue with him,

Acts 10:45

And the believers of Jewish descent, who had come with Peter, were amazed [when they saw] that the gift of the Holy Spirit had [now] been poured out on the Gentiles also.

Romans 4:12

And he also became the father of circumcised people [i.e., the Jews], who are not only circumcised, but who also follow the [same] example of faith [in God] which our forefather Abraham had before he was circumcised.

1 Corinthians 3:5-9

After all, who is Apollos? And who is Paul? They are [only] servants through whom you believed [in Christ], with each one doing what the Lord gave him to do.

2 Corinthians 6:1

As workers together with God we urge you also, who have received God's unearned favor, do not allow it to be for nothing,

2 Corinthians 7:6-7

But God, who comforts downhearted people, comforted us [also] by the arrival of Titus.

Galatians 2:7-8

On the contrary, they saw that I had [already] been entrusted [by God] with the Gospel for the uncircumcised ones [i.e., for Gentiles], just as Peter [had been entrusted by God] with the Gospel for the circumcised ones [i.e., for Jews].

Ephesians 2:11

So, you Gentiles by birth should remember what you once were. You are called "Uncircumcision" by those who are called "Circumcision" [i.e., the Jews], (which refers to a physical procedure performed by people).

Philippians 4:3

Yes, and I am asking you also, [my] faithful partner [Note: This person is unknown, but may have been one of Paul's preacher companions], help those women, for they have worked hard with me in [spreading] the Gospel, along with Clement also, and the rest of my fellow-workers, whose names are in the book of life. [See Rev. 3:5; Heb. 12:23].

Colossians 4:7

Tychicus will tell you all about my affairs. [Note: This man probably delivered this letter as well as the one to the Ephesians. See Eph. 6:21]. He is our dearly loved brother and faithful minister and fellow-slave in [the service of] the Lord.

1 Thessalonians 3:2

and so we [i.e., I] sent Timothy, our brother and God's fellow-worker in [the ministry of] the Gospel, to strengthen and encourage you in your faith,

1 Thessalonians 3:7

So, brothers, through all of our distress and persecution, we were encouraged over you because of your faith,

Titus 1:10

For there are many rebellious people, especially among the circumcision [i.e., the Jews], whose talk is useless and who deceive people.

Treasury of Scripture Knowledge

Summary

And Jesus, which is called Justus, who are of the circumcision. These only are my fellowworkers unto the kingdom of God, which have been a comfort unto me.

Bible References

Who

Acts 10:45
And the believers of Jewish descent, who had come with Peter, were amazed [when they saw] that the gift of the Holy Spirit had [now] been poured out on the Gentiles also.
Acts 11:2
And when Peter came up to Jerusalem, those [believers] of Jewish descent began to argue with him,
Romans 4:12
And he also became the father of circumcised people [i.e., the Jews], who are not only circumcised, but who also follow the [same] example of faith [in God] which our forefather Abraham had before he was circumcised.
Galatians 2:7
On the contrary, they saw that I had [already] been entrusted [by God] with the Gospel for the uncircumcised ones [i.e., for Gentiles], just as Peter [had been entrusted by God] with the Gospel for the circumcised ones [i.e., for Jews].
Ephesians 2:11
So, you Gentiles by birth should remember what you once were. You are called "Uncircumcision" by those who are called "Circumcision" [i.e., the Jews], (which refers to a physical procedure performed by people).
Titus 1:10
For there are many rebellious people, especially among the circumcision [i.e., the Jews], whose talk is useless and who deceive people.

Fellow-workers

Colossians 4:7
Tychicus will tell you all about my affairs. [Note: This man probably delivered this letter as well as the one to the Ephesians. See Eph. 6:21]. He is our dearly loved brother and faithful minister and fellow-slave in [the service of] the Lord.
1 Corinthians 3:5
After all, who is Apollos? And who is Paul? They are [only] servants through whom you believed [in Christ], with each one doing what the Lord gave him to do.
2 Corinthians 6:1
As workers together with God we urge you also, who have received God's unearned favor, do not allow it to be for nothing,
Philippians 4:3
Yes, and I am asking you also, [my] faithful partner [Note: This person is unknown, but may have been one of Paul's preacher companions], help those women, for they have worked hard with me in [spreading] the Gospel, along with Clement also, and the rest of my fellow-workers, whose names are in the book of life. [See Rev. 3:5; Heb. 12:23].
1 Thessalonians 3:2
and so we [i.e., I] sent Timothy, our brother and God's fellow-worker in [the ministry of] the Gospel, to strengthen and encourage you in your faith,
Philemon 1:1
[This letter is from] Paul, a prisoner of Christ Jesus, and Timothy our brother, [and is being sent] to Philemon our dearly loved [brother] and fellow-worker,

A comfort

2 Corinthians 7:6
But God, who comforts downhearted people, comforted us [also] by the arrival of Titus.
1 Thessalonians 3:7
So, brothers, through all of our distress and persecution, we were encouraged over you because of your faith,