וַיָּשִׂ֤ימוּ עָלָיו֙ שָׂרֵ֣י מִסִּ֔ים לְמַ֥עַן עַנֹּת֖וֹ בְּסִבְלֹתָ֑ם וַיִּ֜בֶן עָרֵ֤י מִסְכְּנוֹת֙ לְפַרְעֹ֔ה אֶת־פִּתֹ֖ם וְאֶת־רַעַמְסֵֽס׃
감독들을 그들 위에 세우고 그들에게 무거운 짐을 지워 괴롭게 하여 그들로 바로를 위하여 국고성 비돔과 라암셋을 건축하게 하니라
Shenei Luchot HaBerit
When he responded, Isaiah only volunteered for the שליחות, G–d's mission, not for the הליכה, which could have passed for his own initiative. G–d had to tell him then that at that point in time He needed a messenger only for the unpleasant part of the mission. This is why He said to him לך ואמרת, "go and say." Similarly, in our case, G–d wanted to provoke Pharaoh so that out of the additional "darkness" the contrast with the "light" of the redemption would be so much greater. In other words, יהי שם השם מברך, first afflictions, then peace, serenity. G–d Himself is with us even while we suffer, i.e. His own name will become greater only in the future. This is the meaning of עמו אנכי בצרה, "I am with Israel when it is in trouble" (Psalms 91,15). There is no greater trouble than that G–d's Presence must exile itself on account of our sins. In Exodus 1,14, וימררו את חייהם בעבודה קשה, "They made their lives miserable with hard labour," the word חייהם refers to that which gives us our strength, i.e. G–d. In other words, the Egyptians made our lives in the Celestial Regions bitter.