Kabbalah su Salmi 45:4

“And keep all His statutes.” This is Hod, to beware of a harlot. 359. This agrees with what we have learned. Rabbi Yehuda said: It is written: “Gird your sword upon your thigh, O mighty warrior: your glory and your majesty” (Tehilim 45:4). This refers to he who makes haste to place the fear of the strong sharpened sword, WHICH IS MALCHUT, before him, upon the thigh. What is “upon your thigh”? It means upon this holy sign, to guard it, as is written: “Put, I pray you, your hand under my thigh” (Beresheet 24:2).

Relating to what it says in the verse “Gird Your sword on Your thigh, O Mighty One” (Psalms 45:4), in our original explanation that the sword that avenges the revenge of the Covenant for someone who damages the Brit (Covenant), as it says at length in the Zohar in Va’era: 77. One day, Rabbi Chiya and Rabbi Yosi were before Rabbi Shimon. Rabbi Shimon opened the discussion saying, “Be afraid of the sword. For wrath brings the punishments of the sword, that you may know that there is a judgment” (Iyov 19:29). HE ASKS, It is written: “Be afraid of the sword.” What sword? HE ANSWERS, This is “a sword…that shall avenge My covenant” (Vayikra 26:25). This sword, WHICH IS MALCHUT, stands to observe who is false to the covenant, WHICH IS YESOD, because anyone who is false to the covenant BLEMISHES IT WITH SEXUAL MISCONDUCT OR SPILLING SEMEN IN VAIN, it is this sword that takes vengeance on him. 78. This is the meaning of: “For wrath brings the punishments of the sword.” What is the reason? IT IS that anyone who is false to the covenant distances the desire OF MALCHUT TO RECEIVE SUSTENANCE FROM ZEIR ANPIN, and thus whoever should receive SUSTENANCE, NAMELY YESOD does not receive it, and does not give to his place, since his place, WHICH IS MALCHUT, is not awakened toward him. BECAUSE OF THE BLEMISH IN THE COVENANT THE DESIRE TO RECEIVE SUSTENANCE WAS TAKEN FROM HER.