1 Corinthians 6:8

But you inflict injustice, and defraud, and that your brethren.

2 Corinthians 11:22

Are they Hebrews? I am also. Are they Israelites? I am also. Are they the seed of Abraham? I am also.

Philippians 3:5

in circumcision the eighth day, of the race of Israel, of the tribe of Benjamin, a Hebrew of the Hebrews; as touching the law, a Pharisee;

Treasury of Scripture Knowledge

Summary

That every man should let his manservant, and every man his maidservant, being an Hebrew or an Hebrewess, go free; that none should serve himself of them, to wit, of a Jew his brother.

Bible References

Hebrew

2 Corinthians 11:22
Are they Hebrews? I am also. Are they Israelites? I am also. Are they the seed of Abraham? I am also.
Philippians 3:5
in circumcision the eighth day, of the race of Israel, of the tribe of Benjamin, a Hebrew of the Hebrews; as touching the law, a Pharisee;

Serve

1 Corinthians 6:8
But you inflict injustice, and defraud, and that your brethren.