Musar su Salmi 48:3

And know that the inadvertent sinner will certainly be punished, as we have already explained; and all the more so, the transgressor - meaning one who is inadvertent about something that most people are careful about - so he should worry and be afraid because of his sin. And our Rabbis, may their memory be blessed, said (Midrash Tehillim 48) in explanation of that which is written (Psalms 48:3), “Beautiful for situation, the joy of the whole earth: Mount Zion, the sides of the north, the city of the great King” - that at a time when a person was an inadvertent sinner, his heart would be worried and he would tremble with fear about his sin until he would go up to Jerusalem and offer his sin-offering. And [then] he was completely happy. About this was it stated, “Beautiful for situation, the joy of the whole earth.” And that which it states, “the sides of the north,” is speaking about the altar. As “the sides of the north” were “the joy of the whole world,” since the sin-offering was slaughtered on the northern side. And our Rabbis, may their memory be blessed, said (Midrash Tehillim 51), “When a person commits a transgression and constantly goes back and forth in his heart concerning the matter of his sin that he sinned, and trembles and fears about it - the Holy One, blessed be He, forgives him. But when he removes the transgression from in front of his eyes and it is little and light in his eyes, his case is similar to one who is bitten by a scorpion, but makes light of the bite. So he presses his foot on the ground to remove the poison. But those who see him say to him, ‘Do you not know that it will go up from the sole of your foot, [even] up to your skull?’“