Galatians 6:13

Even those who are being circumcised, are not themselves keeping the Law, but they want you to be circumcised so that they may glory in your flesh.

Matthew 23:3

"therefore do and observe whatever they bid you; but do not do as they do, for they preach, but do not practise.

Matthew 23:15

"Woe unto you, Scribes and Pharisees, hypocrites! For you scour sea and land to make one proselyte, and when he is gained, you make him twofold more a son of hell than you are, yourselves.

Matthew 23:23

"Woe unto you, Scribes and Pharisees, hypocrites! For you tithe mint and anise and cummin, and neglect the weightier matters of the Law??ustice and mercy and good faith; these latter you ought to have done, and not to have left the former undone.

Romans 2:17-25

Now if you bear the name of a Jew, and rely upon law, and boast yourself in God,

Romans 3:9-19

What then? Are we Jews in a better position? Not at all, for I have already charged all, both Jews and Gentiles, with being under sin.

1 Corinthians 3:21

So let no one make boast in men. For all things are yours;

1 Corinthians 5:6

Your glorying is not good. Do you not know that even a little leaven leavens all the lump?

2 Corinthians 11:18

Since so many are making worldly boasts, I shall boast, too!

Philippians 3:3

For we are the true circumcision, who worship God in the spirit, and make our boast in Christ Jesus, and have no confidence in outward rites,

2 Peter 2:19

They promise them liberty, while they themselves are slaves of rottenness! (For indeed a man is the slave of anything which masters him.)

Treasury of Scripture Knowledge

Summary

For neither they themselves who are circumcised keep the law; but desire to have you circumcised, that they may glory in your flesh.

Bible References

Keep

Matthew 23:3
"therefore do and observe whatever they bid you; but do not do as they do, for they preach, but do not practise.
Romans 2:17
Now if you bear the name of a Jew, and rely upon law, and boast yourself in God,
Romans 3:9
What then? Are we Jews in a better position? Not at all, for I have already charged all, both Jews and Gentiles, with being under sin.
2 Peter 2:19
They promise them liberty, while they themselves are slaves of rottenness! (For indeed a man is the slave of anything which masters him.)

That they may

1 Corinthians 3:21
So let no one make boast in men. For all things are yours;
1 Corinthians 5:6
Your glorying is not good. Do you not know that even a little leaven leavens all the lump?
2 Corinthians 11:18
Since so many are making worldly boasts, I shall boast, too!

General references

Matthew 23:4
"For they bind heavy burdens and lay them on men's shoulders, but they themselves will not lift a finger to move them.
Luke 5:38
"But new wine must be put into fresh wine-skins
1 Corinthians 1:31
so that as Scripture says, He that glories, let him glory in the Lord.
2 Corinthians 10:17
Meanwhile. Let him who boasts, boast in the Lord.