This does not mean that, in the Church of Christ then, there was no one besides the Apostle Paul and Timothy who sincerely cared for the flock. Rather, when he sent Timothy, no sons of God were near him.
Only hirelings were with him, seeking their own and not the things of Jesus Christ. Yet the Apostle himself, sincerely caring for the flock, chose to send a son of God, that is, Timothy, and to remain among hirelings.
We too meet hirelings, and no one recognizes them except the Lord. He looks into the heart and recognizes them. Yet sometimes we also come to know them.
For the Lord did not say in vain, also concerning wolves, "You will know them by their fruits" (Mt 7:16). Temptations scandalize many, and then their thoughts reveal them. Yet many remain hidden.
Let there be superiors in the sheepfold, both sons and hirelings. Those deputies who are sons are shepherds. If they are shepherds, why is there only one Shepherd?
It is because all of them are members of the one Shepherd to whom the sheep belong. They are also members of the one Sheep, for "as a sheep He was led to the slaughter" (Is 53:7).
Now hear that hirelings also are needed. In the Church many seek earthly advantage, yet they preach Christ. Through them the voice of Christ is heard, and the sheep follow it.
They follow not the voice of the hireling, but the voice of the Shepherd sounding through the hireling. Hear of the hirelings whom the Lord Himself indicates.
"The scribes and Pharisees sit on Moses' seat; therefore do all that they tell you, but do not do what they do" (cf. Mt 23:2-3).
What else did He say but this: "Hear the voice of the Shepherd through hirelings"? For while sitting on Moses' seat they teach the law of God. Therefore God teaches through them.
But if they wish to teach what is their own, do not listen to them. Do not do what they teach from themselves.
Certainly such hirelings seek their own, and not the things of Jesus Christ (Phil 2:21). Nevertheless, no hireling dares say to the people of Christ, "Seek your own, and not the things of Jesus Christ" (Phil 2:21).
For the evil that he does he does not preach from the seat of Christ. He harms by doing evil, not by speaking what is good.