We are not Christians just because we claim to be one, because we have an oral profession of faith nor by our regular church attendance and neither by our knowledge of the bible. Satan and his followers can do all these things, but they hate God and rebel against Him.
If we genuinely have and possess the Christian life of faith, it is evidenced by a life of obedience and live consistently seeking and hungering for God’s truth, will, and righteousness in our lives. As Jesus says, ” We will know them by their fruits,” meaning we know them because we see God’s work in their lives, changing, disciplining, and moulding them to be Christlike and holy.
Sad to say, many who call themselves Christians live in carnality, worldliness, love of this world, disobedience, compromise, and sin. They have no holy fear of God, no evidence of God, nor the work and power of God in sanctification and holy living. They love sin and hate God’s truth, rebuke, and correction.
They are hearing God’s word, but it is not profitable for them because their hearts are hardened by unbelief and self-righteousness, and they walk in pride and arrogance.
Honestly, my heart is filled with sadness, knowing that many of those who profess to be Christians will soon face God’s judgment and wrath in His coming and will be condemned to suffer in hell throughout eternity. One red flag sign is that they hate preaching about Jesus’s coming and His coming judgment. All they want to hear are words of blessings, prosperity, and how they can have their best life now.
There is no conviction of sin nor mourning of sin, in fact they don’t want to be confronted of their sins and hate preaching of sin, righteousness and judgment for it is offensive to them, sadly, they are living in falsehood, lies and self deception.
Much love in Christ,
Your Brother,
Thomas 
Pursuing Holiness