So then is it a sin to laugh at sexual jokes? Sometimes a friend or co-worker will tell me a sexual joke and I’ll laugh, but then immediately afterwards, I feel guilty about laughing. I think it might be my scruples, but I want to know your opinions.
From the Catholic catechism on Conscience: 1795 “Conscience is man’s most secret core, and his sanctuary. There he is alone with God whose voice echoes in his depths” (GS 16).
1796 Conscience is a judgment of reason by which the human person recognizes the moral quality of a concrete act.
1797 For the man who has committed evil, the verdict of his conscience remains a pledge of conversion and of hope.
1798 A well-formed conscience is upright and truthful. It formulates its judgments according to reason, in conformity with the true good willed by the wisdom of the Creator. Everyone must avail himself of the means to form his conscience.
1799 Faced with a moral choice, conscience can make either a right judgment in accordance with reason and the divine law or, on the contrary, an erroneous judgment that departs from them.
1800 A human being must always obey the certain judgment of his conscience.
1801 Conscience can remain in ignorance or make erroneous judgments. Such ignorance and errors are not always free of guilt.
1802 The Word of God is a light for our path. We must assimilate it in faith and prayer and put it into practice. This is how moral conscience is formed.
Ones conscience can convict us if we go against what we think is right but do that which is opposed to it. We
must form our conscience rightly, with perseverance, in study, to travel the “narrow road” that leads to life. Don’t we study to learn to drive a car to keep from hurting others or ourselves? Yet we leave good and evil to our feelings which can lead us to do terrible things like adultery, injury, or killing. The Church says that sexual jokes are, or at least can be, a “sin” against purity. Would you tell your mom, sister, or Jesus what you are laughing at? TV shows are the same, forming the conscience by what we are putting into our minds.