It's the unforgivable sin, according to the gospel reading from Mark two Sundays ago.
I remember reading the gospel at the early service that day, out on the lawn, and when I got to this part, I saw one man near the front row raise his eyebrows. I'm not sure if he raised his eyebrows at the part about "blaspheming the Holy Spirit" or about "the unforgivable sin," or if it was a combination of the two. But my immediate thought was, "I should have preached about this. People are going to wonder about it."
The psalm appointed for Sunday, despite my reservations expressed on Monday, is quite a piece of liturgical theology. If you look it up in your handy-dandy study Bible (rather than the BCP), you’ll find that it is given both a title and a style heading.
In Jesus’ day—as in ours--redefining the family is a provocative act with far-reaching social, political, moral and spiritual implications. If we were to isolate Jesus in Mark 3 from the moments in the other gospels in which Jesus interacts with his family, we might conclude this story with George Aichele’s sharply worded assertion, “Mark’s Jesus is no supporter of family values!”
I worship in a congregation whose members sometimes hesitate before responding to scripture readings with “Thanks be to God!” On one Sunday, after hearing Jesus’ parable of the sheep and the goats and the strong words of warning at the end of that parable, they were so restrained that the liturgist looked up from his Bible and remarked, “You’re not so sure about that, are you?”