Whether a sin committed through passion, should be called a sin of weakness?

❌ Objection 1 : It would seem that a sin committed through passion should not be called a sin of weakness. For a passion is a vehement movement of the sensitive appetite, as stated above (Article [1]). Now vehemence of movements is evidence of strength rather than of weakness. Therefore a sin committed through passion, should not be called a sin of weakness.

❌ Objection 2 : Further, weakness in man regards that which is most fragile in him. Now this is the flesh; whence it is written (Ps. 77:39): "He remembered that they are flesh." Therefore sins of weakness should be those which result from bodily defects, rather than those which are due to a passion.

❌ Objection 3 : Further, man does not seem to be weak in respect of things which are subject to his will. Now it is subject to man's will, whether he do or do not the things to which his passions incline him, according to Gn. 4:7: "Thy appetite shall be under thee [*Vulg.: 'The lust thereof shall be under thee.'], and thou shalt have dominion over it." Therefore sin committed through passion is not a sin of weakness.