Whether it is a mortal sin to ask for the debt at a holy time?

Objections

Objection 1 : It would seem that it is a mortal sin to ask for the debt at a holy time. For Gregory says (Dial. i) that the devil took possession of a woman who had intercourse with her husband at night and came in the morning to the procession. But this would not have happened had she not sinned mortally. Therefore, etc.
Objection 2 : Further, whoever disobeys a Divine command commits a mortal sin. Now the Lord commanded (Ex. 19:15): "Come not near your wives," when namely they were about to receive the Law. Much more therefore do husbands sin mortally if they have intercourse with their wives at a time when they should be intent on the sacred observances of the New Law.