Be careful of some Christians if ….

1. They cause divisions among Christians.(Rom. 16:18).

2. They cause offenses against truth (Rom. 16:18).

3. They do not serve God (Rom. 16:17-18).

4. They serve their own bellies (Rom. 16:18; Php. 3:19).

5. They use slick tongues to deceive (Rom. 16:18).

6. They are enemies of the cross (Php. 3:18).

7. They walk contrary to the gospel (Php. 3:17).

8. They glory in their shame (Php. 3:19).

9. They mind earthly things (Php. 3:19).

10. They bring in heresies (2Pet. 2:1; see note, Mt. 7:15).

Paul writing to the Churches in Galatia says that these kind of Christians are walking after the flesh and will not inherit the kingdom of God.

Galatians 5:19-21 (KJV)
19 Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,
20 Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,

21 Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God.