5 But watch thou in all things. He proceeds with the former exhortation, to the effect that the more grievous the diseases are, the more earnestly Timothy may labor to cure them; and that the nearer dangers are at hand, the more diligently he may keep watch. And because the ministers of Christ, when they faithfully discharge their office, are immediately called to engage in combats, he at the same time reminds Timothy to be firm and immovable in enduring adversity. (196)
Do the work of an Evangelist That is, “Do that which belongs to an evangelist.” Whether he denotes generally by this term any ministers of the gospel, or whether this was a special office, is doubtful; but I am more inclined to the second opinion, because from Ephesians 4:11 it is clearly evident that this was an intermediate class between apostles and pastors, so that the evangelists ranked as assistants next to the apostles. It is also more probable that Timothy, whom Paul had associated with himself as his closest companion in all things, surpassed ordinary pastors in rank and dignity of office, than that he was only one of their number. Besides, to mention an honorable title of office tends not only to encourage him, but to recommend his authority to others; and Paul had in view both of these objects.
Render thy ministry approved If we read this clause as in the old translation, “Fulfill thy ministry,” the meaning will be: “Thou canst not fully discharge the office intrusted to thee but by doing those things which I have enjoined. Wherefore see that you fail not in the middle of the course.” But because πληροφορεῖν commonly means “to render certain” or “to prove,” I prefer the following meaning, which is also most agreeable to the context, — that Timothy, by watching, and by patiently enduring afflictions, and by constant teaching, will succeed in having the truth of his ministry established, because from such marks all will acknowledge him to be a good and faithful minister of Christ.
(196) “When the devil has raised his standard, and when scandals and disturbances abound everywhere, we cannot be sufficiently attentive to guard against them, unless we are fortified by patience, and are not discouraged by the adversity which we must endure. If this warning ever was advantageous, how exceedingly necessary is it at the present day! Has not the world arrived at the highest pitch of iniquity? We see that the majority furiously reject the gospel. As to others who pretend to welcome the gospel, what sort of obedience do they render to it? There is so much contempt and so much pride, that, as soon as vices are reproved, or more sharpness is used than suits the taste of those who would wish to have full permission to act wickedly, and whose sole aim is to destroy everything, they are filled with spite. Although Papists will permit their preaching Friars to cry out and storm against them, and at the same time do nothing but steep themselves in lies to their destruction, they who openly declare that they wish the reformation of the gospel cannot endure to be reproved when it is necessary, but gnash their teeth against God, and fulfill what Paul says to the Corinthians, that if deceivers came to impose upon them, they would bear with all tyranny, and would be quiet when they were buffeted; but if we teach them faithfully in the name of God and for their salvation, they are so fastidious that a single word will provoke them to rebellion; and if we persevere in doing our duty, war will be immediately declared. Would to God that these things were not so visible amongst us as they are! ” — Fr. Ser.