Whether ignorance causes involuntariness?

❌ Objection 1 : It would seem that ignorance does not cause involuntariness. For "the involuntary act deserves pardon," as Damascene says (De Fide Orth. ii, 24). But sometimes that which is done through ignorance does not deserve pardon, according to 1 Cor. 14:38: "If any man know not, he shall not be known." Therefore ignorance does not cause involuntariness.

❌ Objection 2 : Further, every sin implies ignorance; according to Prov. 14: 22: "They err, that work evil." If, therefore, ignorance causes involuntariness, it would follow that every sin is involuntary: which is opposed to the saying of Augustine, that "every sin is voluntary" (De Vera Relig. xiv).

❌ Objection 3 : Further, "involuntariness is not without sadness," as Damascene says (De Fide Orth. ii, 24). But some things are done out of ignorance, but without sadness: for instance, a man may kill a foe, whom he wishes to kill, thinking at the time that he is killing a stag. Therefore ignorance does not cause involuntariness.