Musar su Proverbi 23:23

2) Very often, when one comes to the synagogue he also learns a chapter of Mishnayoth or a halachah or Ein Yaakov and the like. And our sages of blessed memory have already said (Berachoth 64b): "One who leaves the synagogue and goes to the house of study merits beholding the face of the Shechinah," which is not the case with him who prays alone in his house, who remains without Torah. This abuse is very commonplace in our days, in our many sins, with many mourners who want to bestow merit upon their fathers by making a permanent minyan in their house for the entire one-year mourning period. Immediately after praying each one goes to his house, so that all of those who pray there are left without Torah. This is not at all to the merit of their fathers. The major amendment for the soul of one's father is his son's strengthening himself to learn Torah every day and also to do lovingkindness — just as the major amendment for the atonement of one's sins when he is still alive is through Torah and lovingkindness, as it is written (Mishlei 16:6): "By lovingkindness and truth, sin will be atoned, as our sages of blessed memory have said: "'truth' — this is Torah, as it is written (Ibid. 23;33): 'Buy truth and do not sell it.'" So, the son who wishes to accord merit to his father, his major contribution is Torah and lovingkindness. (See Ahavath Chesed, Chapter XV, where we have elaborated on this.)

And, in Midrash Eichah: "When does the kingdom of the idolators make a decree against Israel and succeed in it? When they [Israel] cast words of Torah to the ground, as it is written (Daniel 8:12): 'And a time will be set for the [end of] the daily offering and it [(the idolatrous kingdom)] will throw truth to the ground and it will achieve and prosper.' "Truth" is Torah, as it is written (Mishlei 23:23): 'Buy truth and do not sell it! And it is written (Hoshea 8:3): 'Israel has forsaken truth; the foe will pursue it.' And "good" is nothing other than Torah."

When Israel was freed from the dominance of the angel of death while it received the Torah at Mount Sinai, and lost this freedom due to the sin of the golden calf, the angel Mattatarmolin with the face of an ox took up position on Israel's left, and Satan and the nations of the world started counting the people. Once the sin had been redressed by means of, amongst other things, the ashes of the red heifer, Torah was restored to being perfect, i.e תורת ידוד תמימה, so that even the מלאך רע יענה אמן, the angel that normally negates, portends evil, had to approve of Israel's rehabilitation. When this condition does not exist our situation is reversed and all our adversaries are waiting in the wings to applaud our downfall. In the introduction of Midrash Rabbah on Eichah, we find the comment on Daniel 8,12, וצבא תנתן על התמיד בפשע, "and a set time (army) will be allotted to the daily sacrifice because of sin." צבא means Malchiyut, i.e. dominance by other nations. We know this from Isaiah 24,21, יפקוד ה' על צבא המרום במרום "In that day the Lord will punish the host of heaven in heaven and the kings of earth on earth." The תמיד we referred to in Daniel, is a reference to Israel, since it is written והגית בו יומם ולילה, “occupy yourself with it by day and by night,” i.e. תמיד, constantly (Joshua 1,8). The word בפשע refers to the sin of neglecting Torah. Any time Israel throws Torah to the ground, other nations will prevail over us, since it says ותשלך אמת ארצה "when it throws truth to the ground." We know that אמת, truth, is a reference to Torah: אמת קנה ואל תמכור, "buy the truth, never sell it!" (Proverbs 23,23). If you throw words of Torah to the ground other nations will immediately prevail against you. Confirmation of this is found in Daniel 8,12, ועשתה והצליחה, "it will act and succeed." Since Gentiles do not have Torah, the verse must refer to the Gentiles prevailing over Israel.