Jerome

He shall cut him in sunder, is not to be understood of execution by the sword, but that he shall sever him from the company of the saints. And shall appoint him his portion with the hypocrites, with those, namely, that were in the field, and grinding at the mill, and were nevertheless left. For as we often say that the hypocrite is one who is one thing, and passes himself for another; so in the field and at the mill he seemed to be doing the same as others, but the event proved that his purpose was different.

Catena Aurea by Aquinas ↗

Thomas Aquinas

And what will happen? A threefold punishment follows. And shall separate him, not, as Jerome says, as if he would divide him with a sword, but from the company of the good; below 25:32: And he shall separate them one from another, as the shepherd separates the sheep from the goats. And this is the greatest punishment. Origen says thus: in man there are three things: soul, body, and spiritual gift. And these in good prelates will not be divided, but in bad prelates they will. …

Commentary on Matthew ↗

Rabanus Maurus

Or, appoints him his portion with the hypocrites, that is, a twofold share of punishment, that of fire and frost; to the fire belongs the weeping, to the frost the gnashing of teethk.

Catena Aurea by Aquinas ↗