Musar su Salmi 15:4

And the seventh principle is whole-hearted submission and lowliness. For the one who knows his Creator knows how one who transgresses His words is crooked and lowly - so he is lowered in his worth, like the matter that is stated (Psalms 15:4), "for whom a contemptible man is abhorrent." And it is [also] stated, (Job 15:16), "What then of one loathsome and foul man, who drinks wrongdoing like water"; [and] (Jeremiah 6:30), "They are called rejected silver." Therefore he will be submissive and lowly in his [own] eyes. And when King David, peace be upon him, confessed after Nathan the prophet came to him, he said at the end of his words (Psalms 51:19), "True sacrifice to God is a contrite spirit; God, You will not despise a contrite and crushed heart" - "a contrite spirit" is a lowly spirit. From this we have learned that submission is from the principles of repentance, since this psalm is wholly founded upon the principles of repentance. And with submission, a man is acceptable to God, as it is stated (Isaiah 66:2), "To the poor and brokenhearted." And it is stated about the matter of repentance, (Isaiah 57:14-15), "[The Lord] says, 'Build up, build up a highway, etc.' For thus said He who high aloft forever dwells, whose name is holy, 'I dwell on high, in holiness; yet with the contrite and the lowly in spirit - reviving the spirits of the lowly, reviving the hearts of the contrite." We learn [also from here] that submission is from the principles of repentance. And likewise does the entire remainder of this section speak about penitents: "For I will not always contend, etc. For their sinful greed I was angry, etc. I see their ways, and I will heal them and I will guide them, etc." (Isaiah 57:16-18). Its explanation is, I see that their ways are [grounded] in submission, as it stated, "yet with the contrite and the lowly in spirit"; and with bitter-heartedness, as it stated (Isaiah 57:16), "when spirits in front of Me cover themselves"; "and I will heal them," as I will forgive his iniquity, like [in] (Hosea 14:5), "I will heal their affliction," [and in] (Isaiah 6:10), "and repent and save itself"; "and I will guide them" - I will help him to leave the sin, and give him strength against his impulse.

The fourth section: One who attaches himself to an evildoer. It is not enough for him that he does not reprimand him with the rod of his mouth and surely distance him; but he rather brings him close like a friend. And it is stated (II Chronicles 20:37), “As you have made a partnership, etc., the Lord will break up your work.” Whereas the righteous are surely disgusted by the evildoer, as it is stated (Psalms 15:4), “A contemptible man is disgusting in his eyes.” And our Rabbis, may their memory be blessed, said (Bava Kamma 92b), “Not for naught did the starling go to the raven, but because it is its kind. And it stated, ‘All fowl will live with its kind, and men with those like him’ (Book of Ben Sira 13:17).” And they said (Megillah 28a), “It is prohibited for a person to gaze at the likeness of a wicked man, as it is stated (II Kings 3:14), ‘Were it not that I regard the presence of Jehoshaphat, the king of Judea, I would not look toward you, nor see you.’” And they [continued], “[Any one who gazes at the likeness of an evil man,] his eyes become dim [at the time of his old age], as it is stated (Genesis 27:1), ‘And it came to pass, that when Isaac was old, and his eyes were dim so that he could not see’ - because he gazed at the wicked Esau.” And we have already discussed very well that there are many ways of death found by one who attaches himself to an evildoer.

Our sages of blessed memory expounded (Ketuvot 103b): "'he honors those who fear G-d' (Tehilim 15:4) - this refers to Yehoshafat King of Judah, who, whenever he saw a Torah scholar, would rise up from his throne, hug him, kiss him, and say to him: 'Rebbi, Rebbi, my teacher, my teacher'".