I believe that would be these Jews.
Zechariah 2:8 For thus saith the LORD of hosts; After the glory hath he sent me unto the nations which spoiled you: for he that toucheth you toucheth the apple of his eye.
Acts 1:8 But ye shall receive power, after that the Holy Ghost is come upon you:
and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.
Romans 1:16 For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth;
to the Jew first, and also to the Greek.
The jewish people were the first ones given the opportunity to believe on Christ, but after a nice reading of Romans 9, we realize that they, as a whole, rejected Jesus Christ and didn't believe God, thereby being separated and cast away from the former covenant that God had made with them in the day he brought them out of Egypt.
But the Bible defines a Jew as one who follows after and praises God. How else can one do that if it's not through Jesus Christ, by being saved?
Romans 2:28-29 For he is not a Jew, which is one outwardly; neither is that circumcision, which is outward in the flesh: But he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter; whose praise is not of men, but of God.
God is no respecter of persons (Romans 2:11). True Jews are those that are saved by Jesus Christ and are circumcised in the spirit.
Modern jews in the nation of Israel deny that Christ is the messiah.
1 John 2:22 Who is a liar but he that denieth that Jesus is the Christ? HE IS ANTICHRIST, that denieth the Father and the Son.
Revelation 2:9 I know thy works, and tribulation, and poverty, (but thou art rich) and I know the blasphemy of them which SAY THEY ARE JEWS, AND ARE NOT, but are the synagogue of Satan.