Judas 1:12

These are spots in your feasts of charity, when they feast with you, feeding themselves without fear: clouds they are without water, carried about of winds; trees whose fruit withereth, without fruit, twice dead, plucked up by the roots;

These are spots — Blemishes.

In your feasts of love — Anciently observed in all the churches.

Feeding themselves without fear — Without any fear of God, or jealousy over themselves.

Twice dead — In sin, first by nature, and afterwards by apostasy.

Plucked up by the roots — And so incapable of ever reviving.