מְֽכַסֶּה־פֶּ֭שַׁע מְבַקֵּ֣שׁ אַהֲבָ֑ה וְשֹׁנֶ֥ה בְ֝דָבָ֗ר מַפְרִ֥יד אַלּֽוּף׃
דער װאָס זוכט ליבשאַפֿט, פֿאַרדעקט אױף זינד, און דער װאָס חזרט איבער גערײד, צעשײדט גוטע פֿרײַנט.
Rabbeinu Yonah
"acquire for yourself a friend": A person needs three things from a good friend. One is for words of Torah, as it stated (Taanit 7a), "I have learned much from my teachers and more from my friends than from my teachers." And the second is for commandments. As even if his friend is not more pious than he and there are times that he does what is not in order. [Yet it is only] when he derives pleasure from something that he does the sin, but it is not his desire and his will that his friend do it - as he derives no enjoyment from this. And it is like they said (Kiddushin 63b), "And a man will not sin if it is not for himself." It comes out that both of them will repent, each one according to the word of his friend. And the third is regarding advice that he can take, that he be 'one who arouses (a counselor) for help' in all of his affairs and to take good counsel from him and to be his confidant. Since he is his ally, he will not reveal [his secrets] to others so as not to confound his plan - and not even to those that appear to him to be friends; for is the appearance of love evident on their faces? And about this Shlomo, peace be upon him, stated (Proverbs 15:22), "Plans are foiled for want of counsel, but they succeed through many advisers." And that which he said, "acquire for yourself a friend" with an expression of [acquisition] (euphemism) is [to say] that if he does not find him for free, he should acquire him with his money and expend his assets in order to get to a good friend; or that he should acquire him with words of appeasement and with a soft way of talking. And [so] he should not be exacting about his words and he should tolerate the words of his mouth; even when he says something against him, he should not return a response. As without this, he will not keep [the friendship], since the opinions [of people] are different. And sometimes he will seek something, [but] his friend who is like himself will say, "See, I do not [consider] this to be fit." And if he doesn't [listen to his friend] (he will certainly pass him up), the [friendship] will unravel. And this is what Shlomo, peace be upon him, stated (Proverbs 17:9), "He who seeks love covers errors, but he who harps on a matter alienates a leader." He meant to say, one who covers when his friend errs, seeks love - as through this, their love is preserved, as he tolerates his errors. But if he harps about the matter with his friend, he speaks against him and repeats it and says, "See what this one said; what he said about me, he 'alienates the leader' - he(certainly) alienates his leader from him, meaning to say, his friend.
Ibn Ezra
יֵחַת Shall be broken; comp. החתות Thou hast broken (9:3); it is Niphal, like יִמַּס (13:7) Will be melted מֵעָם By a people.9A. V. That it be not a people. Evil shall befall them by means of a people that will come against them. יֵחַת can also be Kal of a verb נחת ,פ״נ to go down, (like יִגַּשׁ he will approach; comp. תֵּחַת It comes down) (Prov. 17:9); הנחת Cause to come down (Joel 3:11), where the נ is not omitted. The meaning of יֵחַת מֵעָם is accordingly: They will go down and be no more considered as a nation.