כְּשָׁמִ֛יר חָזָ֥ק מִצֹּ֖ר נָתַ֣תִּי מִצְחֶ֑ךָ לֹֽא־תִירָ֤א אוֹתָם֙ וְלֹא־תֵחַ֣ת מִפְּנֵיהֶ֔ם כִּ֛י בֵּֽית־מְרִ֖י הֵֽמָּה׃ (פ)
Tulad ng matigas na bakal na higit na matigas kaysa sa batong-kiskisan, ginawa Kong gayon ang iyong noo. Huwag kang matakot sa kanila, at huwag kang manlupaypay sa harap nila, sapagkat sila ay isang sambahayang mapaghimagsik.”
Rashi
As shamir It is a kind of worm, to which they show a stone, and it [the stone] splits in front of it. [Gloss: Another explanation: Shumir is a term for a strong rock, and in Targum Yerushalmi it is used as the translation of צוּר, rock, and so too is the Targum of מִצוּר הָחֲלָמִישּׂ as מִשְּׂמִיר טִנָרָא “out of the flinty rock” (Deut. 8:15). Shamir also means the strongest iron. For just as the strongest rock is called shamir, so is the [element] iron called shamir because of its strength. [This does not appear in all editions.]