How do you know who is of God and walking in His Spirit and those who are no of God and walking either in their own spirit or of the evil one? Are they really a follower of Christ or do they just hold the title of Christian?
A vast majority of those who reside within the four walls of a church building and call themselves “Christian,” is not of the Lord. But they are no more a follower of Jesus Christ than a stone picked out of a stream is a follower of the Lord, neither of them has His Spirit. They are dead and lifeless.
Beloved, do not believe every spirit, but test the spirits to see whether they are from God, for many false prophets have gone out into the world. By this you know the Spirit of God: every spirit that confesses that Jesus Christ has come in the flesh is from God, and every spirit that does not confess Jesus is not from God. This is the spirit of the antichrist, which you heard was coming and now is in the world already.
Little children, you are from God and have overcome them, for He who is in you is greater than he who is in the world. They are from the world; therefore they speak from the world, and the world listens to them. We are from God. Whoever knows God listens to us; whoever is not from God does not listen to us. By this we know the Spirit of truth and the spirit of error. 1 John 4:1-6
If they walk in the Spirit of the Lord they will display the fruits of the Spirit, they will obey the commands of the Lord, and will acknowledge Jesus Christ as Lord as well. Test them not only by what they say but by their actions and deeds.
If they walk in the ways of man and the deceptions of the devil, the words from their mouths and the deeds from their heart will reflect his wicked ways.
Though they may claim to be walking with God and praise Him with their lips, their actions will show the truth and make clear without any doubt who they really serve. They are not true, they only carry the title “Christian,” but they are false and have been sent out into the world, not for good but to deceive.
For many deceivers have gone out into the world, those who do not confess the coming of Jesus Christ in the flesh. Such a one is the deceiver and the antichrist.
Watch yourselves, so that you may not lose what we have worked for, but may win a full reward. Everyone who goes on ahead and does not abide in the teaching of Christ, does not have God. Whoever abides in the teaching has both the Father and the Son. 2 John 1:7-9
Beware of them, avoid them, do not so quickly join yourself to them, listen to, or follow what they declare. Those who follow the ways of evil and wickedness are not just those who riot, loot and vandalize. They are not just those who attack, kill, and maim.
They are those who walk in deceptive ways, scheming and conniving their way into churches and the lives of the weak and wavering. Walking in a majestic masquerade, wearing the clothing of the upright, talking with the vocabulary of the church, and preaching from the pulpits of piety.
But you must remember, beloved, the predictions of the apostles of our Lord Jesus Christ. They said to you, “In the last time there will be scoffers, following their own ungodly passions.”
It is these who cause divisions, worldly people, devoid of the Spirit. But you, beloved, building yourselves up in your most holy faith and praying in the Holy Spirit, keep yourselves in the love of God, waiting for the mercy of our Lord Jesus Christ that leads to eternal life. Jude 1:17-21
Be alert to their treachery, be sober-minded to their ways of deception and smooth words that they speak. Seeking to puff others up with pride, arrogance, and gossip just like how they operate. Speaking with truth mixed with lies which makes everything they say a lie.
This is why you should study the Word of God. This is why you must feed on the Bread of Life, that you will know the truth. If you know the truth you will recognize falsehood, and the truth will set you free from the web of deception.
And by this we know that we have come to know Him, if we keep His commandments. Whoever says “I know Him” but does not keep His commandments is a liar, and the truth is not in him,
but whoever keeps His word, in Him truly the love of God is perfected. By this we may know that we are in Him: whoever says He abides in Him ought to walk in the same way in which He walked. 1 John 2:3-6