Titus 3:9

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

2 Timothy 2:14

Call to mind these things, charging [men] before the Lord not to debate about words, to no profit, to the subversion of the hearers.

2 Timothy 2:23

But foolish and trifling disputes avoid, knowing that they produce contentions;

1 Corinthians 8:1

And concerning things offered to idols we all have knowledge. Knowledge puffs up, but love edifies.

1 Corinthians 13:2

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

1 Timothy 1:3-7

As I requested you to remain at Ephesus, when going into Macedonia, that you might charge some not to preach another doctrine,

1 Timothy 4:7

but avoid profane and silly myths; exercise yourself in piety;

2 Timothy 2:16

But profane and vain words, avoid; for they greatly increase impiety,

Titus 1:14

not attending to Jewish myths, and commandments of men who subvert 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 attending to Jewish myths, and commandments of men who subvert the truth.
1 Timothy 1:3
As I requested you to remain at Ephesus, when going into Macedonia, that you might charge some not to preach another doctrine,
1 Timothy 4:7
but avoid profane and silly myths; exercise yourself in piety;
2 Timothy 2:23
But foolish and trifling disputes avoid, knowing that they produce contentions;

Unprofitable

1 Corinthians 8:1
And concerning things offered to idols we all have knowledge. Knowledge puffs up, but love edifies.
1 Corinthians 13:2
And if I have prophecy, and understand all mysteries, and all knowledge, and if I have all faith so as to remove mountains, and have not love, I am nothing.
2 Timothy 2:14
Call to mind these things, charging [men] before the Lord not to debate about words, to no profit, to the subversion of the hearers.

General references

2 Timothy 2:23
But foolish and trifling disputes avoid, knowing that they produce contentions;