Titus 3:9

but avoid foolish questionings, and genealogies, and strifes, and contentions 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 not to carry on a strife of words, to no useful purpose, but rather to the subverting of the hearers.

2 Timothy 2:23

But the foolish and ignorant questionings avoid, knowing that they gender quarrels;

1 Corinthians 8:1

Now concerning the things offered in sacrifice to idols, we know that we all have knowledge. Knowledge puffeth up, but love edifieth;

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 as to remove mountains, and have not love, I am nothing.

1 Timothy 1:3-7

As I besought thee, when I set out for Macedonia, to remain still in Ephesus, that thou mightst charge certain persons not to teach other doctrine,

1 Timothy 4:7

But avoid the profane and old wives fables; and exercise thyself unto godliness.

2 Timothy 2:16

But shun the profane babblings; for they will go on to a higher degree of ungodliness;

Titus 1:14

not giving heed to Jewish fables, and commandments of men who turn 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 commandments of men who turn away from the truth.
1 Timothy 1:3
As I besought thee, when I set out for Macedonia, to remain still in Ephesus, that thou mightst charge certain persons not to teach other doctrine,
1 Timothy 4:7
But avoid the profane and old wives fables; and exercise thyself unto godliness.
2 Timothy 2:23
But the foolish and ignorant questionings avoid, knowing that they gender quarrels;

Unprofitable

1 Corinthians 8:1
Now concerning the things offered in sacrifice to idols, we know that we all have knowledge. Knowledge puffeth up, but love edifieth;
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 as to 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 not to carry on a strife of words, to no useful purpose, but rather to the subverting of the hearers.

General references

2 Timothy 2:23
But the foolish and ignorant questionings avoid, knowing that they gender quarrels;