John Chrysostom

Consider here also, I entreat, the noble soul, the soul more glowing and keener than fire: how he was indeed especially desirous to be present himself with the Corinthians, thus distempered and broken into parties. For he knew well what a help to the disciples his presence was and what a mischief his absence. …

Homily on 1 Corinthians 14 ↗

Theophylact of Ohrid

He did not say "will teach," lest they be offended (for Timothy was young), but "will remind" — what you already knew before, he will renew in your memory. By "ways" he means the regulations, rules, customs, and divine laws connected with the preaching. He will remind you how I conduct myself, namely: I do not puff myself up, as you do; I do not introduce quarrels and divisions. "In Christ," that is, there is nothing human in these ways, but everything is in Christ, or is accomplished with the help of Christ. …

Commentary on 1 Corinthians ↗

Thomas Aquinas

Secondly, he removes the excuse of ignorance, saying: Therefore, I sent to you Timothy, my beloved and faithful child in the Lord, which agrees with what he said of Timothy in Phil (2:20): "I have no one like him, who will be genuinely anxious for your welfare." He will remind you of my ways in Christ, i.e., he will teach you my procedures, i.e., all that is to be done and advise you to follow them: "Ask for the old paths, which is the good way, and walk on it" (Jer 6:16), which ways are in Christ Jesus. …

Commentary on 1 Corinthians ↗