These are grumblers, malcontents, following their own sinful desires; they are loud-mouthed boasters, showing favoritism to gain advantage.
16. These are murmurers. They who indulge their depraved lusts, are hard to please, and morose, so that they are never satisfied. Hence it is, that they always murmur and complain, however kindly good men may treat them. We may render the words “Grumblers and fault-finders,” that is, as the word means, with their own lot: they grumbled or murmured against others, and were discontented...
Here, I. The apostle enlarges further on the character of these evil men and seducers: they are murmurers, complainers, etc., Jde 1:16. Observe, A murmuring complaining temper, indulged and expressed, lays men under a very bad character; such are very weak at least, and for the most part very wicked.
Commenting on Jude 1:16-25
These are murmurers,.... That is, at others; secretly, inwardly, in a muttering way, grunting out their murmurs like swine; to which, for their filthiness and apostasy, false teachers may be filly compared: and their murmurs might be both against God and men; against God, against the being of God, denying, or at least wishing there was no God, and uneasy because there is one; against...