Titus 3:9

and foolish questions, and genealogies, and contentions, and strivings about law, stand away from -- for they are unprofitable and vain.

2 Timothy 2:14

These things remind them of, testifying fully before the Lord -- not to strive about words to nothing profitable, but to the subversion of those hearing;

2 Timothy 2:23

and the foolish and uninstructed questions be avoiding, having known that they beget strife,

Job 15:3

To reason with a word not useful? And speeches -- no profit in them?

1 Corinthians 8:1

And concerning the things sacrificed to idols, we have known that we all have knowledge: knowledge puffeth up, but love buildeth up;

1 Corinthians 13:2

and if I have prophecy, and know all the secrets, and all the knowledge, and if I have all the faith, so as to remove mountains, and have not love, I am nothing;

1 Timothy 1:3-7

according as I did exhort thee to remain in Ephesus -- I going on to Macedonia -- that thou mightest charge certain not to teach any other thing,

1 Timothy 4:7

and the profane and old women's fables reject thou, and exercise thyself unto piety,

2 Timothy 2:16

and the profane vain talkings stand aloof from, for to more impiety they will advance,

Titus 1:14

not giving heed to Jewish fables and commands of men, turning themselves away 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 giving heed to Jewish fables and commands of men, turning themselves away from the truth;
1 Timothy 1:3
according as I did exhort thee to remain in Ephesus -- I going on to Macedonia -- that thou mightest charge certain not to teach any other thing,
1 Timothy 4:7
and the profane and old women's fables reject thou, and exercise thyself unto piety,
2 Timothy 2:23
and the foolish and uninstructed questions be avoiding, having known that they beget strife,

Unprofitable

Job 15:3
To reason with a word not useful? And speeches -- no profit in them?
1 Corinthians 8:1
And concerning the things sacrificed to idols, we have known that we all have knowledge: knowledge puffeth up, but love buildeth up;
1 Corinthians 13:2
and if I have prophecy, and know all the secrets, and all the knowledge, and if I have all the faith, so as to remove mountains, and have not love, I am nothing;
2 Timothy 2:14
These things remind them of, testifying fully before the Lord -- not to strive about words to nothing profitable, but to the subversion of those hearing;

General references

2 Timothy 2:23
and the foolish and uninstructed questions be avoiding, having known that they beget strife,