Romans 2:28

For he is not a Jew who is one outwardly; neither is that circumcision which is outward in the flesh:

Galatians 6:15

For neither is circumcision anything, nor uncircumcision, but a new creature.

Matthew 3:9

and think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham.

Romans 9:6-8

But it is not as though the word of God hath come to nought. For they are not all Israel, that are of Israel:

Revelation 2:9

I know thy tribulation, and thy poverty (but thou art rich), and the blasphemy of them that say they are Jews, and they art not, but are a synagogue of Satan.

Psalm 73:1

Surely God is good to Israel, Even to such as are pure in heart.

Isaiah 1:9-15

Except Jehovah of hosts had left unto us a very small remnant, we should have been as Sodom, we should have been like unto Gomorrah.

Isaiah 48:1-2

Hear ye this, O house of Jacob, who are called by the name of Israel, and are come forth out of the waters of Judah; who swear by the name of Jehovah, and make mention of the God of Israel, but not in truth, nor in righteousness.

Jeremiah 9:26

Egypt, and Judah, and Edom, and the children of Ammon, and Moab, and all that have the corners of their hair cut off, that dwell in the wilderness; for all the nations are uncircumcised, and all the house of Israel are uncircumcised in heart.

Hosea 1:6-9

And she conceived again, and bare a daughter. And Jehovah'said unto him, Call her name Lo-ruhamah; for I will no more have mercy upon the house of Israel, that I should in any wise pardon them.

John 1:47

Jesus saw Nathanael coming to him, and saith of him, Behold, an Israelite indeed, in whom is no guile!

John 8:37-39

I know that ye are Abraham's seed: yet ye seek to kill me, because my word hath not free course in you.

Romans 2:17

But if thou bearest the name of a Jew, and restest upon the law, and gloriest in God,

Romans 4:10-12

How then was it reckoned? when he was in circumcision, or in uncircumcision? Not in circumcision, but in uncircumcision:

1 Peter 3:21

which also after a true likeness doth now save you, even baptism, not the putting away of the filth of the flesh, but the interrogation of a good conscience toward God, through the resurrection of Jesus Christ;

Treasury of Scripture Knowledge

Summary

For he is not a Jew, which is one outwardly; neither is that circumcision, which is outward in the flesh:

Bible References

For he

Romans 9:6
But it is not as though the word of God hath come to nought. For they are not all Israel, that are of Israel:
Psalm 73:1
Surely God is good to Israel, Even to such as are pure in heart.
Isaiah 1:9
Except Jehovah of hosts had left unto us a very small remnant, we should have been as Sodom, we should have been like unto Gomorrah.
Isaiah 48:1
Hear ye this, O house of Jacob, who are called by the name of Israel, and are come forth out of the waters of Judah; who swear by the name of Jehovah, and make mention of the God of Israel, but not in truth, nor in righteousness.
Hosea 1:6
And she conceived again, and bare a daughter. And Jehovah'said unto him, Call her name Lo-ruhamah; for I will no more have mercy upon the house of Israel, that I should in any wise pardon them.
Matthew 3:9
and think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham.
John 1:47
Jesus saw Nathanael coming to him, and saith of him, Behold, an Israelite indeed, in whom is no guile!
John 8:37
I know that ye are Abraham's seed: yet ye seek to kill me, because my word hath not free course in you.
Galatians 6:15
For neither is circumcision anything, nor uncircumcision, but a new creature.
Revelation 2:9
I know thy tribulation, and thy poverty (but thou art rich), and the blasphemy of them that say they are Jews, and they art not, but are a synagogue of Satan.

Neither

Jeremiah 9:26
Egypt, and Judah, and Edom, and the children of Ammon, and Moab, and all that have the corners of their hair cut off, that dwell in the wilderness; for all the nations are uncircumcised, and all the house of Israel are uncircumcised in heart.
Romans 4:10
How then was it reckoned? when he was in circumcision, or in uncircumcision? Not in circumcision, but in uncircumcision:
1 Peter 3:21
which also after a true likeness doth now save you, even baptism, not the putting away of the filth of the flesh, but the interrogation of a good conscience toward God, through the resurrection of Jesus Christ;

American Standard Version Public Domain