אִסְר֣וּ הַסּוּסִ֗ים וַֽעֲלוּ֙ הַפָּ֣רָשִׁ֔ים וְהִֽתְיַצְּב֖וּ בְּכ֥וֹבָעִ֑ים מִרְקוּ֙ הָֽרְמָחִ֔ים לִבְשׁ֖וּ הַסִּרְיֹנֹֽת׃
Attelez les chevaux, montez-les, cavaliers, présentez-vous, casques en tête; fourbissez vos lances, endossez vos cuirasses.
Rashi
burnished - Heb. מָרוּק, similar to (Jer. 46:4): “polish (מִרְקוּ) the spears,”; (Lev. 6: 21): “it shall be scoured (וּמרַק) and rinsed with water.” In I Kings (7:45), it is written מְמרָט, like (Lev. 13:40): “whose head will become bald (יִמָּרֵט),” and the Targum renders: fine copper.
Ibn Ezra
was cooked and scoured and boiled are all verbs in the passive voice. The word scoured [Hebrew: moraq] has a ḥolem over the first consonant of the root (unlike most words in the pu‘al form), because the second consonant of the root is a resh . In Hebrew the resh , with very few exceptions, cannot take a strong dagesh (compare the similar word “thrown” [Hebrew: zoraq] [Numbers 19:13]). Scoured is from “polish the spears” [Jeremiah 46:4] — the mem is part of the root.