Galatians 6:13

for even they who are circumcised, do not themselves observe the law in other respects; but they dedesire to have you circumcised, that they may have matter of glorying upon that account.

Matthew 23:3

therefore whatever moral precepts they bid you observe, those observe and practise; but don't follow their example: for they preach one thing, and practise another.

Matthew 23:15

wo unto you, Scribes and Pharisees, hypocrites, who ransack sea and land to make one proselyte, and when he is gain'd, ye make him deserve Gehenna much more than your selves.

Matthew 23:23

wo unto you, Scribes and Pharisees, hypocrites, who pay tithe of mint, anise, and cummin, but neglect those more important matters of the law, justice, mercy, and fidelity: these were the things ye ought to have practis'd, without neglecting however the other matters.

Romans 2:17-25

'Tis true, you bear the name of a Jew, you depend upon the law, and boast of your worship:

Romans 3:9-19

"how then are we better than they?" why, not at all: for we have already convicted both Jews and Gentiles, of being all under the guilt of sin.

1 Corinthians 3:21

therefore, let no one glory in men: for all are yours:

1 Corinthians 5:6

Your levity is very indecent: don't you know that a little leaven infects the whole mass?

2 Corinthians 11:18

since many glory in outward advantages, I will glory too.

Philippians 3:3

for we are the genuine sons of Abraham, who worship God in the spiritual manner, and value no other dependance than that on Jesus Christ, without confiding in any external advantages:

2 Peter 2:19

whilst they promise others liberty, they themselves are slaves to their corrupt passions. for he that is vanquished, is a slave to the conqueror.

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 whatever moral precepts they bid you observe, those observe and practise; but don't follow their example: for they preach one thing, and practise another.
Romans 2:17
'Tis true, you bear the name of a Jew, you depend upon the law, and boast of your worship:
Romans 3:9
"how then are we better than they?" why, not at all: for we have already convicted both Jews and Gentiles, of being all under the guilt of sin.
2 Peter 2:19
whilst they promise others liberty, they themselves are slaves to their corrupt passions. for he that is vanquished, is a slave to the conqueror.

That they may

1 Corinthians 3:21
therefore, let no one glory in men: for all are yours:
1 Corinthians 5:6
Your levity is very indecent: don't you know that a little leaven infects the whole mass?
2 Corinthians 11:18
since many glory in outward advantages, I will glory too.

General references

Matthew 23:4
for they load men with intolerable impositions, and will not take the least pains to ease them of the burthen: they do nothing but out of ostentation,
Luke 5:38
but new wine must be put into new skins, and both will be preserv'd.
1 Corinthians 1:31
according as it is written, "he that glorieth, should glory in the Lord."
2 Corinthians 10:17
but he that glorieth, let him glory in the Lord.