Blessed Theophylact explains: "You did not simply attach yourself to me, but followed me. That is, you remained with me for a long time, shared everything with me, attended to all that was mine, and became trained in it. Be strong."
Oecumenius adds: "As one who has acquired training, you must remain the same without change."
He followed the teaching, "the word of the Gospel," as Chrysostom and Blessed Theophylact say. He followed "the truth handed on to you in preaching," as Blessed Theodoret says, and "the doctrines," as Oecumenius says.
Here the beginning of all that follows is laid down. Convictions received with all the fervor of a youthful heart gave movement to the whole life.
"Conduct," αγωγη, means behavior, "that manner of life shown in deeds," as Blessed Theodoret says. It means "how I acted in varied relations with others and in different circumstances," as Oecumenius says.
"Purpose," προθεσει, means the disposition of my will. "This is said of zeal and disposition of soul," says Chrysostom, or "of the aims St. Paul had in view," says Blessed Theodoret.
You saw this and followed "my zeal, presence of mind, and manly inspiration, with which I did everything," as Oecumenius and Blessed Theophylact say.
"And I myself," he says, "did not only teach, nor philosophize only in words, but fulfilled in deed," says Chrysostom.
Both outward deeds and inward dispositions answered to one another, and everything was according to God and before God.
"Faith" means not only doctrinal faith, but still more living faith, or confidence in God, that He will never abandon those who work for His glory.
Blessed Theodoret writes: "You learned from me the disposition I have toward the Master."
Blessed Theophylact defines it directly: "He says that you followed faith, that is, firmness and unchanging constancy in the true doctrines, or faith that does not let one fall into despair in extreme dangers.
It is faith that believes God will deliver one from them." See the same in Oecumenius.
"Longsuffering" means patience when meeting obstacles that cut off the favorable course of the labors of our zeal, as Oecumenius says. It also applies to cases of the brethren’s falls, whether into sins or into some wrong opinion.
"Nothing of the kind troubled me," says Chrysostom. "No temptation and no obstacle cooled my zeal or made me lazy. Those of other opinions did not trouble me, but I received them too with good spirit and instructed them with meekness," says Blessed Theophylact.
"I also showed great longsuffering toward heretics," says Chrysostom.
"Love" means "the heartfelt compassion with which I am always disposed toward all," as Blessed Theodoret says. "Who is weak, and I am not weak? Who is made to stumble, and I do not burn?" (2 Cor 11:29).
"My little children, for whom I am again in travail," cf. Gal 4:19.
"Patience" means patience "in persecutions," as Chrysostom says, and "how manfully I bear the assaults of opponents," as Blessed Theodoret says.