23. save with fear--The oldest manuscripts do not read "with fear" in this position: but after "snatching them out of the fire" (with which, compare Am 4:11; 1Co 3:15; Zec 3:2, said of a most narrow escape), they add the following words, forming a THIRD class, "and others compassionate with (IN) fear." Three kinds of patients require three kinds of medical treatment. Ministers and Christians are said to "save" those whom they are made the instruments of saving; the Greek for "save" is present, therefore meaning "try to save." Jude already (Jude 9) had reference to the same passage (Zec 3:1-3). The three classes are: (1) those who contend with you (accusative case in oldest manuscripts), whom you should convict; (2) those who are as brands already in the fire, of which hell-fire is the consummation: these you should try to save by snatching them out; (3) those who are objects of compassion, whom accordingly you should compassionate (and help if occasion should offer), but at the same time not let pity degenerate into connivance at their error. Your compassion is to be accompanied "with fear" of being at all defiled by them.
      hating--Even hatred has its legitimate field of exercise. Sin is the only thing which God hates: so ought we.
      even the garment--a proverbial phrase: avoiding the most remote contact with sin, and hating that which borders on it. As garments of the apostles wrought miracles of good in healing, so the very garment of sinners metaphorically, that is, anything brought into contact with their pollution, is to be avoided. Compare as to lepers and other persons defiled, Le 13:52-57; 15:4-17: the garments were held polluted; and anyone touching them was excluded, until purified, from religious and civil communion with the sanctified people of Israel. Christians who received at baptism the white garment in token of purity, are not to defile it by any approach to what is defiled.

JFB.