נְצֹ֣ר לְשׁוֹנְךָ֣ מֵרָ֑ע וּ֝שְׂפָתֶ֗יךָ מִדַּבֵּ֥ר מִרְמָֽה׃
Mantieni la tua lingua dal male e le tue labbra dal parlare di astuzia.
Reshit Chokhmah
Also the reason and source for Keri itself if because one transgressed the covenant of the mouth, as I explained above regarding “guard your tongue from evil” (Psalms 34:14). Also one who reveals [secrets of Torah] to those who are not worthy [and ready], his punishment is Keri. The reason is because the container of the supernal secrets, which come from “Tzadik” that is called “Yud”, is a secret for those who fear Him and are with the Shechinah; thus, “the secrets of Hashem are for those who fear him” (Psalms 25:14). When one is not ready and worthy it is as if he drew down the light of the Torah from inside and did not find a container for it to rest in, and it went out to the Chitzonim. Thus it turns out that he ‘worked’ inside and shot outside, which was the sin of Er and Onan, and therefore the cause and effect is that his semen will spill out in vain and get defiled.
Reshit Chokhmah
Also one who is a person that loves peace and chases peace merits the attribute of ‘Tzadik’, as is known that the attribute of ‘Tzadik’ is called ‘Shalom’ (peace), and just like he separated peace he should ask for peace between a man and his wife and between a man and his friend. This is also explained by the verses of King David, “Who is the man who desires life and loves length of days that he may see good? Depart from evil and do good; Seek peace and pursue it” (Psalms 34:13-15). The aspect of “loves length of days that he may see good” is the correction of the attribute of ‘Tzadik’, and corresponding to it it says “depart from evil and do good; Seek peace and pursue it”, which is one who emits semen in vain, and “do good” is to correct the attribute of goodness by virtue of the Tzedakah, as is explained above. Also to adjoin ‘redemption’ with ‘prayer’ (not to have any break between ‘Ga’al Yisrael’ and the Amidah Prayer), as it says “and I have done that which is good in Your eyes” (Isaiah 38:3), that he adjoined ‘redemption’ with ‘prayer’. The meaning of “do good” is to correct the attribute of goodness that is called ‘Tzadik’ in the secret of unification, and therefore one needs to also seek after peace, as we explained, and this is the aspect of ‘doing’. The aspect of departing from evil that relates to the damage of the ‘Tzadik’ is guarding the tongue from anything that damages it, as we explained above regarding “guard your tongue from evil” (Psalms 34:14) that they defile those who damage their tongue, and there is no need to expand on this.
Idra Zuta
Different orifices derive from the ear’s orifice. They are the orifice of the eye, the orifice of the mouth, the orifice of the nose. The sound that penetrates the orifice of the ear enters, if necessary, the eyes’ orifices from the ear and the eyes shed tears (as said in the Greater Gathering section 222). The sound enters the aperture in the nose, if necessary, and they billow smoke and fire from the sound (as said in section 126). This is the meaning of, “and Hashem heard it, and his anger was kindled; and the fire of Hashem burned among them” (Bemidbar 11:1). If needed, the sound enters the oral orifice, which enunciates words out of the sound. It is all from the sound that penetrates the ears; it enters the whole body, and everything is moved by it. Much depends on this ear. Happy is he who guards his words. It is therefore written, “Keep your tongue from evil, and your lips from speaking guile” (Tehillim 34:14).