Titus 3:9

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

2 Timothy 2:14

Of these things put in remembrance, testifying earnestly before the Lord not to have disputes of words, profitable for nothing, to the subversion of the hearers.

2 Timothy 2:23

But foolish and senseless questionings avoid, knowing that they beget contentions.

Job 15:3

Reasoning with unprofitable talk, and with speeches which do no good?

1 Corinthians 8:1

But concerning things sacrificed to idols, we know, (for we all have knowledge: knowledge puffs up, but love edifies.

1 Corinthians 13:2

And if I have prophecy, and know all mysteries and all knowledge, and if I have all faith, so as to remove mountains, but have not love, I am nothing.

1 Timothy 1:3-7

Even as I begged thee to remain in Ephesus, when I was going to Macedonia, that thou mightest enjoin some not to teach other doctrines,

1 Timothy 4:7

But profane and old wives' fables avoid, but exercise thyself unto piety;

2 Timothy 2:16

But profane, vain babblings shun, for they will advance to greater impiety,

Titus 1:14

not turning their minds to Jewish fables and commandments of men turning 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 turning their minds to Jewish fables and commandments of men turning away from the truth.
1 Timothy 1:3
Even as I begged thee to remain in Ephesus, when I was going to Macedonia, that thou mightest enjoin some not to teach other doctrines,
1 Timothy 4:7
But profane and old wives' fables avoid, but exercise thyself unto piety;
2 Timothy 2:23
But foolish and senseless questionings avoid, knowing that they beget contentions.

Unprofitable

Job 15:3
Reasoning with unprofitable talk, and with speeches which do no good?
1 Corinthians 8:1
But concerning things sacrificed to idols, we know, (for we all have knowledge: knowledge puffs up, but love edifies.
1 Corinthians 13:2
And if I have prophecy, and know all mysteries and all knowledge, and if I have all faith, so as to remove mountains, but have not love, I am nothing.
2 Timothy 2:14
Of these things put in remembrance, testifying earnestly before the Lord not to have disputes of words, profitable for nothing, to the subversion of the hearers.

General references

2 Timothy 2:23
But foolish and senseless questionings avoid, knowing that they beget contentions.