Verses with the word hebrews in the New Testament (3 verses):

Acts 6:1
And in those days, when the number of the disciples was multiplied, there arose a murmuring of the Grecians against the Hebrews, because their widows were neglected in the daily ministration.

2 Corinthians 11:22
Are they Hebrews? so am I. Are they Israelites? so am I. Are they the seed of Abraham? so am I.

Philippians 3:5
Circumcised the eighth day, of the stock of Israel, of the tribe of Benjamin, an Hebrew of the Hebrews; as touching the law, a Pharisee;