Titus 3:9

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

2 Timothy 2:14

Of these things put them in remembrance, charging them before the Lord that they strive not about words to no profit, but to the ruin of the hearers.

2 Timothy 2:23

But foolish and ignorant questions avoid, knowing that they do produce strifes.

Job 15:3

Should he reason with unprofitable talk? or with speeches with which he can do no good?

1 Corinthians 8:1

Now concerning things offered unto idols, we know that we all have knowledge. Knowledge puffs up, but love edifies.

1 Corinthians 13:2

And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not love, I am nothing.

1 Timothy 1:3-7

As I besought you to abide still at Ephesus, when I went into Macedonia, that you might charge some that they teach no other doctrine,

1 Timothy 4:7

But refuse profane and old wives' tales, and exercise yourself rather unto godliness.

2 Timothy 2:16

But shun profane and vain utterances: for they will increase unto more ungodliness.

Titus 1:14

Not giving heed to Jewish myths, and commandments of men, that turn 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 myths, and commandments of men, that turn from the truth.
1 Timothy 1:3
As I besought you to abide still at Ephesus, when I went into Macedonia, that you might charge some that they teach no other doctrine,
1 Timothy 4:7
But refuse profane and old wives' tales, and exercise yourself rather unto godliness.
2 Timothy 2:23
But foolish and ignorant questions avoid, knowing that they do produce strifes.

Unprofitable

Job 15:3
Should he reason with unprofitable talk? or with speeches with which he can do no good?
1 Corinthians 8:1
Now concerning things offered unto idols, we know that we all have knowledge. Knowledge puffs up, but love edifies.
1 Corinthians 13:2
And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not love, I am nothing.
2 Timothy 2:14
Of these things put them in remembrance, charging them before the Lord that they strive not about words to no profit, but to the ruin of the hearers.

General references

2 Timothy 2:23
But foolish and ignorant questions avoid, knowing that they do produce strifes.