Works of the flesh
Galatians Chapter 5
1 Hee mooueth them to stand in their libertie, 3 and not to obserue circumcision: 13 but rather loue, which is the summe of the Law. 19 He reckoneth vp the workes of the flesh, 22 and the fruits of the spirit, 25 and exhorteth to walke in the spirit.
(Galatians 5:19-21 [KJV])  Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,  Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,  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.
How should we deal with someone that is walking in the words of the flesh ?
The works of the flesh leads to trouble somehow. There are two things to think about here. First of all you should not yourself walk in the works of the flesh.
The other thing to think about is, which makes this an IPD is that we should avoid fellowship with christians that are walking in the works of the flesh.
The reason for this is that you are likely to get of their fruit eventually and they often have evil fruit. So avoid them.
You might say, there wont be many Christians left to fellowship with if we start avoiding works of the flesh Christians. But I tell you. Dont build your faith on Christians. Build your faith on Christ.