John Chrysostom
He no longer commands, but asks, not as a teacher, but as an equal. Having allowed them to sit on the judge's seat, he himself took the place of an advocate.
Since he had already attained what he wished, his joy made him know no measure in humility.
What do you ask, tell me? "Show love toward him," that is, "Confirm love toward him." Receive him with firm love, not merely in a casual way.
By saying this, the Apostle again attributes to them the greatest virtue.
The very ones who before so loved the sinner and defended him that they even boasted of it turned away from him to such a degree.
It cost Paul great labor to make them receive him with firm love.
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Here is a praiseworthy quality in disciples. Here is perfection in the teacher, when the disciples are so obedient and the teacher forms such obedient disciples.
If it were so even now, those who sin would not be so insensible to their sins.
No one should be loved irrationally, nor should anyone be rejected without cause.