This week I will be preaching at Grace Community Church on Mark 3:20-35, a section of scripture which includes the so-called “unforgivable sin.” There is so much confusion on this topic, and I hope to provide a more detailed exposition of Christ’s words. In the mean time, here are some helpful words from Kent Hughes on the issue:
[The unforgivable sin] is the ongoing, continual rejection of the witness of the Holy Spirit to the Divinity and Saviorhood of Christ. It is the perversion in the heart which chooses to call light darkness and darkness light. It is continuing rejection of the witness of the Holy Spirit, whether that witness be a quiet witness in the conscience, the rational witness of the Word, or even miracles and wonders.
He goes on to say,
It is not the ignorant blasphemer on the street who is in danger of committing the unforgivable sin, but the man or woman in the Church who knows the Scriptures, has heard the Word held forth with accuracy, has seen something of the miraculous power of God in changed lives, and yet rejects it all, even identifying what he has seen with the power of Satan. He calls light darkness and good evil, in a testimony to a massive perversion of the spirit (cf. Isaiah 5:20). The warning is particularly to whose who have grown up in the Church and may even have some theological education, but have willfully rejected it and in their heart of hearts attribute supposed Christian reality to evil.
(Kent Hughes, Mark, vol. 1, 92-93)
If you want to make sure that you are not guilty of this sin it is pretty simple, don’t reject what the Spirit says about Jesus (John 16:8). If you come to the end of your life accepting the testimony of the Spirit about Christ, then you have no need to worry about the so-called unforgivable sin.