All grave sins not yet confessed, which a careful examination of conscience brings to mind, must be brought to the sacrament of Penance. The confession of serious sins is the only ordinary way to obtain forgiveness.
Veja este tema no Catecismo
Paragraph 1456
1456. Confession to a priest is an essential part of the sacrament of Penance: "All mortal sins of which penitents after a diligent self-examination are conscious must be recounted by them in confession, even if they are most secret and have been committed against the last two precepts of the Decalogue; for these sins sometimes wound the soul more grievously and are more dangerous than those which are committed openly."54
When Christ's faithful strive to confess all the sins that they can remember, they undoubtedly place all of them before the divine mercy for pardon. But those who fail to do so and knowingly withhold some, place nothing before the divine goodness for remission through the mediation of the priest, "for if the sick person is too ashamed to show his wound to the doctor, the medicine cannot heal what it does not know."55
Acesse nossos estudos biblicos:
What does the promise of salvation and redemption in the midst of judgment in Micah 2:12-13 mean?
How does Ruth’s story teach us about integrity and honesty?
What does Baruch 6:2-5 teach us about the danger of trusting ourselves instead of trusting God?
What is the role of the law in the Old Testament, according to Galatians 3:10-14?