John Chrysostom

"Already ye are filled, already ye are rich:" that is, ye want nothing henceforth; ye are become perfect; ye have attained the very summit; ye stand, as ye think, in need of no one, either among Apostles or teachers. "Already ye are filled." And well saith he "already;" pointing out, from the time, the incredibility of their statements and their unreasonable notion of themselves. …

Homily on 1 Corinthians 12 ↗

Theophylact of Ohrid

Words inspired by indignation. So quickly, he says, you have acquired everything! You have need of nothing! You are already satiated; in a short time you have attained perfection and received all the wealth of knowledge and gifts! Perfection is attained in the age to come, but you, it would seem, already possess it. Indeed, your vainglory shows as though you have ascended to the very summit of perfection. By these words he expresses that they are very far from perfect when they conduct themselves in such a manner.

Commentary on 1 Corinthians ↗

Thomas Aquinas

Then when he says, Already you are filled!, he mocks the pride of those who looked down on Christ's apostles: first, in general; then specifically. As to the first he does two things: first, he ridicules them for presuming too much on themselves; secondly, for looking down on the apostles (v. 9). In regard to the first he does two things: first, he mocks them for presuming to attribute to themselves what they did not have; secondly, for attributing to themselves an abundance of good things, some of which are internal. …

Commentary on 1 Corinthians ↗