The first part of the broadcast presents the explanation of Jesus' warning about the blasphemy against the Holy Spirit. This blasphemy is the rejection of works performed by God's power, or is the ascription of them to another power. The blasphemy against the Holy Spirit is the rejection of the achievement of salvation by divine grace.
The second part presents the return of the unclean spirit when a man who is cleansed of an evil spirit is doomed, because of his inaction and lack of virtues, to the return of that spirit. But this time, says the Gospel, that same spirit brings back with itself seven other similar spirits.