A good soldier of Christ in times of apostasy.

1Co 4:20 For the kingdom of God is not in word, but in power. 

2Ti 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 subverting of the hearers. 

1Ti 6:4 He is proud, knowing nothing, but doting about questions and strifes of words, whereof cometh envy, strife, railings, evil surmisings.

λογομαχίας disputes of word, “strive with words”: “not to have a (mere) war of words” (2Ti_2:23, 2Ti_2:24; 1Ti_6:4) where the most vital matters are at stake (2Ti_2:17, 2Ti_2:18; Act_18:15). 

To strive and contend for the form of sound words, for the wholesome words or doctrines of our Lord Jesus, but not about mere words, and especially such as were to no profit; to no advantage to truth, nor to themselves nor others; were not to edification, to spiritual edification, to godly edifying, which is in faith: 

Words, not things, have been a most fruitful source of contention in the Christian world; and among religious people, the principal cause of animosity has arisen from the different manner of apprehending the same term, while, in essence, both meant the same thing. All preachers and divines should be very careful, both in speaking and writing, to explain the terms they use, and never employ them in any sense but that in which they have explained them.

O how many unnecessary things are thus unprofitably, nay hurtfully, contended for.

Some professors of religion are like vessels of wood and earth. When the vessels of dishonour are cast out to be destroyed, the others will be filled with all the fulness of God. We must see to it that we are holy vessels. Every one in the church whom God approves, will be devoted to his Master's service, and thus fitted for his use. (Matthew Henry)

Charging . . . that they strive not about words. We see proofs in both letters to Timothy that the idle speculations which did the church such damage a little later had already begun. 

Strifes of words are very destructive to the things of God. That they strive not about words to no profit. If people did but consider of what little use most of the controversies in religion are, they would not be so zealous in their strifes of words, to the subverting of the hearers, to the drawing of them away from the great things of God, and occasioning unchristian heats and animosities, by which truth is often in danger of being lost. Observe, People are very prone to strive about words, and such strifes never answer any other ends than to shake some and subvert others; they are not only useless, but they are very hurtful, and therefore ministers are to charge the people that they do not strive about words, and they are most likely to be regarded when they charge them before the Lord, that is, in his name and from his word; when they produce their warrant for what they say. - Study to show thyself approved unto God, 2Ti_2:15.