Matthew 15:8-9
"'This is a People who honour Me with their lips, while their heart is far away from Me;
Matthew 23:13
"But alas for you, Scribes and Pharisees, hypocrites, for you lock the door of the Kingdom of the Heavens against men; you yourselves do not enter, nor do you allow those to enter who are seeking to do so.
John 1:47
Jesus saw Nathanael approaching, and said of him, "Look! here is a true Israelite, in whom there is no deceitfulness!"
John 4:24
God is Spirit; and those who worship Him must bring Him true spiritual worship."
Romans 2:17
And since you claim the name of Jew, and find rest and satisfaction in the Law, and make your boast in God,
Romans 2:28-29
For the true Jew is not the man who is simply a Jew outwardly, and true circumcision is not that which is outward and bodily.
Romans 9:6
Not however that God's word has failed; for all who have sprung from Israel do not count as Israel,
Romans 9:8
In other words, it is not the children by natural descent who count as God's children, but the children made such by the promise are regarded as Abraham's posterity.
1 Timothy 4:2
through the hypocrisy of men who teach falsely and have their own consciences seared as with a hot iron;
2 Timothy 3:2-5
For men will be lovers of self, lovers of money, boastful, haughty, profane. They will be disobedient to parents, thankless, irreligious,
Revelation 2:9
Your sufferings I know, and your poverty--but you are rich--and the evil name given you by those who say that they themselves are Jews, and are not, but are Satan's synagogue.
Revelation 3:9
I will cause some belonging to Satan's synagogue who say that they themselves are Jews, and are not, but are liars--I will make them come and fall at your feet and know for certain that I have loved you.