When Satan Entered Judas
Because of Judas’s love for money (John 12:5-6), he opened up the door to Satan, which he gladly took. The result was a betrayal. Jesus said that it would have been better if Judas didn’t exist than to betray the Son of God (Matthew 26:23-25).
Today, we call this apostasy, when someone claims faith in Jesus Christ but walks away from Him. As you can see, the devil’s hand is in a person’s apostasy. The thoughts of leaving Jesus and speaking ill about Him comes from Satan. There are many atheists, who at one point and time, were professing Christians, but after abandoning the Lord, they seem driven to speak evil of Jesus. Their behavior and sinful desires come from the devil, who is the one manipulating them to participate in his evil plans against God and His saints.
Satan’s goal is to cause as many Christians as he can to abandon the Lord Jesus Christ.