Matthew 12:22-32
Jesus and Beelzebul
22 Then they brought him a demon-possessed man who was blind and mute, and Jesus healed him, so that he could both talk and see. 23 All the people were astonished and said, “Could this be the Son of David?”
24 But when the Pharisees heard this, they said, “It is only by Beelzebul, the prince of demons, that this fellow drives out demons.”
25 Jesus knew their thoughts and said to them, “Every kingdom divided against itself will be ruined, and every city or household divided against itself will not stand. 26 If Satan drives out Satan, he is divided against himself. How then can his kingdom stand? 27 And if I drive out demons by Beelzebul, by whom do your people drive them out? So then, they will be your judges. 28 But if it is by the Spirit of God that I drive out demons, then the kingdom of God has come upon you.
29 “Or again, how can anyone enter a strong man’s house and carry off his possessions unless he first ties up the strong man? Then he can plunder his house.
30 “Whoever is not with me is against me, and whoever does not gather with me scatters. 31 And so I tell you, every kind of sin and slander can be forgiven, but blasphemy against the Spirit will not be forgiven. 32 Anyone who speaks a word against the Son of Man will be forgiven, but anyone who speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come.
. . . The thought that a sin could be so bad hat it is unforgivable sometimes leads people to fear that they may have committed it. That's why it i important to understand the context of this statement, which Jesus made to the Pharisees.
Although they had seen compelling evidence that Jesus was the Messiah, the Pharisees refused to believe in Him. What's more, they even attributed to Satan the miracles Christ performed by the power of the God's Spirit. This blasphemy of the holy Spirit was unforgivable because despite the clearest possible revelation of God, they still weren't willing to accept Jesus as the Messiah. Their unrepentance prevented them from receiving salvation.
Since people living today do not have the undeniable physical presence of Jesus Christ in the world, the Pharisees' unforgivable sin doesn't apply to us. However, it is possible for people to end up in an unpardonable state. This happens when a person repeatedly rejects the Holy Spirit's conviction of sin and the clear revelation of Jesus Christ as the Savior., With each rejection, the heart becomes harder - eventually the calcification prevents it from sensing any impression God's Spirit tries to make.
If you are worried that you may have committed the unpardonable sin, then I can assure you that you haven't, because you are still feeling the conviction of the Spirit. God doesn't withhold salvation from a repentant sinner who comes to Him for forgiveness through faith in his Son. The only thing that makes sin unforgivable is a hard, unrepentant heart.
Stanley, Charles F. "What Is the Unpardonable Sin?" In Touch: Daily Readings for Devoted Living. May 2019. Atlanta, Georgia: In Touch Ministries. page 30