Musar su Levitico 25:36

And with interest and usury, there is a negative commandment - as it is stated (Leviticus 25:36), “Do not exact from him usury or accrued interest, but fear your God” - and it is rectified by a positive commandment, as it is stated, (Leviticus 25:36) “let him live by your side as your kinsman.” Its explanation is, if you have taken interest or usury from him, surely return it to your brother, in order that he may live with you. And his punishment is very weighty - so long as he does not fix that which is crooked, he does not come to the resurrection of the dead, as it is stated (Ezekiel 18:13), “He has lent with usury, or exacted accrued interest - shall he live; he shall not live!” And our Rabbis, may their memory be blessed, explained (Pirkei De’Rabbi Natan 33), it [to be] about the matter of the resurrection of the dead. And our Rabbis, may their memory be blessed, said (Exodus Rabbah 31:6), “Anyone who has the iniquity of interest in his hands will not have an angel intervene (teach) merit on his behalf.” And this is [the understanding] of that which, “shall he live,” is stated as an expression of question and wonder - is there an intervener that will say that his case is to live? All of them will answer, “He shall not live.”