Summa Theologica

IIa IIae q. 98 : Of Perjury (Four Articles)

[Letter] [A4] Entire question
[Letter] [A4] 1. Whether it is necessary for perjury that the statement confirmed on oath be false?
[Letter] [A4] 2. Whether all perjury is sinful?
[Letter] [A4] 3. Whether all perjury is a mortal sin?
[Letter] [A4] 4. Whether he sins who demands an oath of a perjurer?