Jude 1:10

Overview - Jude 1
1	He exhorts them to be constant in the profession of the faith.
4	False teachers are crept in to seduce them, for whose evil doctrine and manners horrible punishment is prepared;
20	whereas the godly, by the assistance of the Holy Spirit, and prayers to God, may persevere, and grow in grace, and keep themselves, and recover others out of the snares of those deceivers.

Jude 1:10  (King James Version)
But these speak evil of those things which they know not: but what they know naturally, as brute beasts, in those things they corrupt themselves.