John Chrysostom

"Salute the brethren that are in Laodicea, and Nymphas, and the Church that is in their house." See how he cements, and knits them together with one another, not by salutation only, but also by interchanging his Epistles. Then again he pays a compliment by addressing him individually. And this he doth not without a reason, but in order to lead the others also to emulate his zeal. For it is not a small thing not to be numbered with the rest. Mark further how he shows the man to be great, seeing his house was a church.

Homily on Colossians 12 ↗

Theophylact of Ohrid

Look how he brings them closer together, how he binds them to one another. This was a famous man, whose entire household were believers, which is why his house was called a church. Therefore Paul also shows his affection toward him, greeting him separately. He does this also in order to urge others to the same zeal, so that others might imitate Nymphas, if they wish to be honored in the same way.

Commentary on Colossians ↗

Ignatius of Antioch

Salute Cassian, my host, and his most serious-minded partner in life, and their very dear children, to whom may "God grant that they find mercy of the Lord in that day," on account of their ministrations to us, whom also I commend to thee in Christ. Salute by name all the faithful in Christ that are at Laodicea. Do not neglect those at Tarsus, but look after them steadily, confirming them in the Gospel. I salute in the Lord, Maris the bishop of Neapolis, near Anazarbus. …

Epistle of Pseudo-Ignatius to Hero, a Deacon of Antioch ↗

Thomas Aquinas

Next, he mentions those whom the Colossians ought to greet: first, those from another church, and secondly, those in their own.

Commentary on Colossians ↗