2 Timothy 1:14

Of these things put them in remembrance, charging them before the Lord that they strive not about words to no profit, but to the subverting of the hearers. (KJV, 2 Timothy 2:14)

I’ve often heard this text used to discourage detailed debate about the meaning of Scripture passages, or even to devalue highly precise Bible study. Is this what Paul’s warning to Timothy here is about?

First, observe that whatever “striving about words” is, Paul clearly saw it as something that threatened Timothy’s ministry. Timothy is to “charge them before the Lord” not to do this. Second, the activity is doubly discouraged as lacking in value (“no profit”) and also as causing damage of some kind to hearers (“subverting”). Third, the activity apparently involved individuals in at least two roles: the “strivers” and the “hearers.”

So what activity is being forbidden here? What is meant by “strive not about words”?