2 Peter 2:1
But there were also false prophets among the people, even as there will be false teachers among you; who will privately introduce destructive sects, denying even the Lord who bought them, bringing on themselves swift destruction.
Revelation 3:8
I know your works: behold, I have set before you an open door, and no man can shut it; because you have little strength, and have kept my word, and have not denied my name.
Jude 1:4
For certain men have come in privily, who long ago were before written to this very condemnation; ungodly men, perverting the favor of our God to lasciviousness, and denying the only sovereign Lord, even our Lord Jesus Christ.
Revelation 2:13
I know your works, and where you dwell; even where the throne of Satan is: and you hold fast my name, and have not denied my faith, even in those days in which Antipas was my faithful witness, who was slain among you, where Satan dwells.