Titus 3:9

but avoid frivolous enquiries about genealogies, and vexatious disputes about the law; for they are unprofitable and vain.

2 Timothy 2:14

These things represent, conjuring them by the presence of the Lord, to avoid disputes about words, which only serve to pervert the audience.

2 Timothy 2:23

decline all impertinent barren disputes, since they only serve for contention.

1 Corinthians 8:1

Now as to things offered to idols, 'tis certain that the knowledge you all pretend to have, swells you with pride, but 'tis charity that edifieth.

1 Corinthians 13:2

and tho' I should have the gift of prophecy, and understand all mysteries, and all knowledge; and tho' I had all the faith necessary to remove mountains, and had no benevolence, it would signify nothing.

1 Timothy 1:3-7

At my departure from Macedonia, I advised you to stay at Ephesus in order to charge certain persons not to teach any different doctrine,

1 Timothy 4:7

as for prophane and groundless fables, reject them.

2 Timothy 2:16

discountenance such as hold vain irreligious discourse; for they will grow bold in impiety,

Titus 1:14

not doating on Jewish Fables, and the tenets of men, that deviate from the truth.

Treasury of Scripture Knowledge

Summary

But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.

General references

Bible References

Avoid

Titus 1:14
not doating on Jewish Fables, and the tenets of men, that deviate from the truth.
1 Timothy 1:3
At my departure from Macedonia, I advised you to stay at Ephesus in order to charge certain persons not to teach any different doctrine,
1 Timothy 4:7
as for prophane and groundless fables, reject them.
2 Timothy 2:23
decline all impertinent barren disputes, since they only serve for contention.

Unprofitable

1 Corinthians 8:1
Now as to things offered to idols, 'tis certain that the knowledge you all pretend to have, swells you with pride, but 'tis charity that edifieth.
1 Corinthians 13:2
and tho' I should have the gift of prophecy, and understand all mysteries, and all knowledge; and tho' I had all the faith necessary to remove mountains, and had no benevolence, it would signify nothing.
2 Timothy 2:14
These things represent, conjuring them by the presence of the Lord, to avoid disputes about words, which only serve to pervert the audience.

General references

2 Timothy 2:23
decline all impertinent barren disputes, since they only serve for contention.