The Scofield Bible Commentary, by Cyrus Ingerson Scofield, [1917], at sacred-texts.com
Jude Chapter 1
preserved
Assurance is the believer's full conviction that, through the work of Christ alone, received by faith, he is in possession of a salvation in which he will be eternally kept. And this assurance rests only upon the Scripture promises to him who believes.
salvation
(See Scofield) - (Rom 1:16).
it was needful
Literally, constraint was upon me, that is, of the Spirit.
saved
(See Scofield) - (Rom 1:16).
great day
The judgment of the fallen angels. The "great day" is the day of the Lord. (Isa 2:9-22). As the final judgment upon Satan occurs after the thousand years, and preceding the final judgment (Rev 20:10) it is congruous to conclude, as to the time, that other fallen angels are judged with him. (Pe2 2:4); (Rev 20:10). Christians are associated with Christ in this judgment. For association with angels at judgment (Co1 6:3).
For other information (See Scofield) - (Rev 20:12).
angels
(See Scofield) - (Heb 1:4).
Cain
Cain (compare (Gen 4:1) a type of the religious natural man, who believes in a God, and in "religion," but after his own will, and who rejects redemption by blood. Compelled as a teacher of religion to explain atonement, the apostate teacher explains it away.
error of Balaam
Balaam, the "error" of Balaam must be distinguished from his "way"
(See Scofield) - (Pe2 2:15)
and his "doctrine"
(See Scofield) - (Rev 2:14).
The "error" of Balaam was that, reasoning from natural morality and seeing the evil in Israel, he supposed a righteous God must curse them. He was blind to the higher morality of the Cross, through which God maintains and enforces the authority and awful sanctions of His law, so that He can be just and the justifier of a believing sinner. The "reward" of (Jde 1:11) may not be money, but popularity, or applause.
Core
See Numbers 16. The sin of Korah was denial of the authority of Moses as God's chosen spokesman, and intrusion into the priest's office.
gainsaying
(Greek, "antilogia", means "against the Word").
sinners
Sin
(See Scofield) - (Rom 3:23).
flesh
Flesh, Summary:
"Flesh," in the ethical sense, is the whole natural or unregenerate man, spirit, soul, and body, as centered upon self, prone to sin, and opposed to God. (Rom 7:18).
The regenerate man is not "in the sphere of the flesh," but in the sphere of the Spirit, (Rom 8:9), but the flesh is still in him, and he may, according to his choice, "walk after the flesh" or "in the Spirit". (Co1 3:1-4); (Gal 5:16); (Gal 5:17).
In the first case, he is a "carnal," in the second case, he is a "spiritual," Christian. Victory over the flesh will be the habitual experience of the believer who walks in the Spirit. (Rom 8:2); (Rom 8:4); (Gal 5:16); (Gal 5:17).