Question 13 — The Sin of Blasphemy, in General

We must now consider the sin of blasphemy, which is opposed to the confession of faith; and (1) blasphemy in general, (2) that blasphemy which is called the sin against the Holy Spirit.

Under the first head there are four points of inquiry:

(1) Whether blasphemy is opposed to the confession of faith?

• (2) Whether blasphemy is always a mortal sin?
• (3) Whether blasphemy is the most grievous sin?
• (4) Whether blasphemy is in the damned?