Romans 12:3

For through the authority graciously given to me I warn every individual among you not to value himself unduly, but to cultivate sobriety of judgement in accordance with the amount of faith which God has allotted to each one.

Philippians 3:6

as to zeal, a persecutor of the Church; as to the righteousness which comes through Law, blameless.

Matthew 6:1-7

"But beware of doing your good actions in the sight of men, in order to attract their gaze; if you do, there is no reward for you with your Father who is in Heaven.

Matthew 9:14

At that time John's disciples came and asked Jesus, "Why do we and the Pharisees fast, but your disciples do not?"

Matthew 15:2-9

"Why do your disciples transgress the tradition of the Elders by not washing their hands before meals?"

Matthew 23:5

And everything they do they do with a view to being observed by men; for they widen their phylacteries and make the tassels large,

Matthew 23:23-24

"Alas for you, Scribes and Pharisees, hypocrites, for you pay the tithe on mint, dill, and cumin, while you have neglected the weightier requirements of the Law--just judgement, mercy, and faithful dealing. These things you ought to have done, and yet you ought not to have left the others undone.

Matthew 23:29

"Alas for you, Scribes and Pharisees, hypocrites, for you repair the sepulchres of the Prophets and keep in order the tombs of the righteous,

Matthew 23:38

See, your house will now be left to you desolate!

Luke 18:12

I fast twice a week. I pay the tithe on all my gains.'

Romans 10:2

For I bear witness that they possess an enthusiasm for God, but it is an unenlightened enthusiasm.

Romans 11:25

For there is a truth, brethren, not revealed hitherto, of which I do not wish to leave you in ignorance, for fear you should attribute superior wisdom to yourselves--the truth, I mean, that partial blindness has fallen upon Israel until the great mass of the Gentiles have come in;

1 Corinthians 3:18

Let no one deceive himself. If any man imagines that he is wise, compared with the rest of you, with the wisdom of the present age, let him become "foolish" so that he may be wise.

1 Corinthians 3:20

And again, "The Lord takes knowledge of the reasonings of the wise--how useless they are."

Colossians 2:18

Let no one defraud you of your prize, priding himself on his humility and on his worship of the angels, and taking his stand on the visions he has seen, and idly puffed up with his unspiritual thoughts.

Colossians 2:23

These rules have indeed an appearance of wisdom where self-imposed worship exists, and an affectation of humility and an ascetic severity. But not one of them is of any value in combating the indulgence of our lower natures.

1 Timothy 4:3

forbidding people to marry, and insisting on abstinence from foods which God has created to be partaken of, with thankfulness, by those who believe and have a clear knowledge of the truth.

James 3:13-17

Which of you is a wise and well-instructed man? Let him prove it by a right life with conduct guided by a wisely teachable spirit.

Revelation 18:19

And they threw dust upon their heads, and cried out, weeping aloud and sorrowing. 'Alas, alas,' they said, 'for this great city, in which, through her vast wealth, the owners of all the ships on the sea have grown rich; because in one short hour she has been laid waste!'

Treasury of Scripture Knowledge

Summary

Be not righteous over much; neither make thyself over wise: why shouldest thou destroy thyself?

Bible References

Be not

Matthew 6:1
"But beware of doing your good actions in the sight of men, in order to attract their gaze; if you do, there is no reward for you with your Father who is in Heaven.
Matthew 9:14
At that time John's disciples came and asked Jesus, "Why do we and the Pharisees fast, but your disciples do not?"
Matthew 15:2
"Why do your disciples transgress the tradition of the Elders by not washing their hands before meals?"
Matthew 23:5
And everything they do they do with a view to being observed by men; for they widen their phylacteries and make the tassels large,
Luke 18:12
I fast twice a week. I pay the tithe on all my gains.'
Romans 10:2
For I bear witness that they possess an enthusiasm for God, but it is an unenlightened enthusiasm.
Philippians 3:6
as to zeal, a persecutor of the Church; as to the righteousness which comes through Law, blameless.
1 Timothy 4:3
forbidding people to marry, and insisting on abstinence from foods which God has created to be partaken of, with thankfulness, by those who believe and have a clear knowledge of the truth.

Neither

Romans 11:25
For there is a truth, brethren, not revealed hitherto, of which I do not wish to leave you in ignorance, for fear you should attribute superior wisdom to yourselves--the truth, I mean, that partial blindness has fallen upon Israel until the great mass of the Gentiles have come in;
Romans 12:3
For through the authority graciously given to me I warn every individual among you not to value himself unduly, but to cultivate sobriety of judgement in accordance with the amount of faith which God has allotted to each one.
1 Corinthians 3:18
Let no one deceive himself. If any man imagines that he is wise, compared with the rest of you, with the wisdom of the present age, let him become "foolish" so that he may be wise.
Colossians 2:18
Let no one defraud you of your prize, priding himself on his humility and on his worship of the angels, and taking his stand on the visions he has seen, and idly puffed up with his unspiritual thoughts.
James 3:13
Which of you is a wise and well-instructed man? Let him prove it by a right life with conduct guided by a wisely teachable spirit.

Destroy thyself

Matthew 23:38
See, your house will now be left to you desolate!
Revelation 18:19
And they threw dust upon their heads, and cried out, weeping aloud and sorrowing. 'Alas, alas,' they said, 'for this great city, in which, through her vast wealth, the owners of all the ships on the sea have grown rich; because in one short hour she has been laid waste!'