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.
1 Peter 2:16
Live as freemen, yet do not use your freedom as a covering of wickedness; but as the servants of God.
2 Peter 2:1-2
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.
2 Peter 2:19
They promise them liberty, whilst they themselves are slaves of corruption: for every one is enslaved by that which overcomes him.
1 John 4:1
Beloved, do not believe every spirit, but try the spirits, whether they be from God; because many false prophets are gone forth into the world.