We read at Matthew 12:31-32 (RSVCE):
31 Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven.
32 And whoever says a word against the Son of man will be forgiven; but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come.
Here, Jesus does not appear to be referring to the generation of His time and the generation(s) to come. Prima facie, He is referring to one's present life and the life after one's death. Since there are different schools of thought in relation to a phase of purification after one's death, I would like to know how exactly the saying of Jesus is interpreted by the Catholic Church.