William Barclay's Daily Study Bible - Jude 1:4
1:4 For certain men have wormed their way into the Church--long before this they were designated for judgment impious creatures they are--who twist the grace of God into a justification of blatant immorality and who deny our only Master and Lord, Jesus Christ. Here is the peril which made Jude lay aside the treatise he was about to write and take up his pen to write this burning letter. The peril came from within the church. Certain men, as the King James Version has it, had crept in... read more
Matthew Henry's Complete Commentary - Jude 1:3-7
We have here, I. The design of the apostle in writing this epistle to the lately converted Jews and Gentiles; namely, to establish them in the Christian faith, and a practice and conversation truly consonant and conformable thereunto, and in an open and bold profession thereof, especially in times of notorious opposition, whether by artful seduction or violent and inhuman persecution. But then we must see to it very carefully that it be really the Christian faith that we believe, profess,... read more