Jude 1:4-5 KJV

4 For there are certain men crept in unawares , who were before of old ordained to this condemnation, ungodly men, turning the grace of our God into lasciviousness, and denying the only Lord God, and our Lord Jesus Christ.
5 I will therefore put you in remembrance , though ye once knew this, how that the Lord, having saved the people out of the land of Egypt, afterward destroyed them that believed not.