2 Peter 2:3

And through covetousness, they will make merchandise of you, by fictitious tales: to whom the punishment threatened of old lingers not, and their destruction slumbers not.

2 Peter 2:10-15

but especially those who go after the flesh in the lust of uncleanness, and who despise government: being audacious, self-willed, who fear not to revile dignitaries;

2 Peter 2:18-20

for, speaking great swelling words of falsehood, they allure by the lusts of the flesh, even by lasciviousness, those who have actually fled away from them who are living in error.

1 John 4:1-3

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.

Jude 1:1

Jude, a servant of Jesus Christ, and brother of James, to them who are sanctified by God the Father, and to the preserved by Jesus Christ, to the called:

Jude 1:12

These men are spots in love feasts, when they feast with you, feeding themselves without fear. They are clouds without water, carried about of winds: withered autumnal trees without fruit; twice dead; rooted out;

Jude 1:16

These are murmurers, and complainers, who walk according to their own lusts; and their mouths speak great swelling words. They admire persons for the sake of gain.

Revelation 1:1

A revelation of Jesus Christ, which God gave to him, to show to his servants the things which must shortly be; and sending by his messenger, he signified them to his servant John,

Treasury of Scripture Knowledge

Summary

For they that are such serve not our Lord Jesus Christ, but their own belly; and by good words and fair speeches deceive the hearts of the simple.

Bible References

Serve

Jude 1:1
Jude, a servant of Jesus Christ, and brother of James, to them who are sanctified by God the Father, and to the preserved by Jesus Christ, to the called:
Revelation 1:1
A revelation of Jesus Christ, which God gave to him, to show to his servants the things which must shortly be; and sending by his messenger, he signified them to his servant John,

By

2 Peter 2:3
And through covetousness, they will make merchandise of you, by fictitious tales: to whom the punishment threatened of old lingers not, and their destruction slumbers not.
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.
Jude 1:16
These are murmurers, and complainers, who walk according to their own lusts; and their mouths speak great swelling words. They admire persons for the sake of gain.