וכאשר יענו אתו. בְּכָל מַה שֶּׁהֵם נוֹתְנִין לֵב לְעַנּוֹת, כֵּן לֵב הַקָּבָּ"ה לְהַרְבּוֹת וּלְהַפְרִיץ: וכאשר יענו אתו AND AS THEY AFFLICTED THEM — In whatsoever matter it was that they set their hearts upon afflicting them so was the heart of the Holy One, blessed be He, set upon multiplying them and making them grow apace.
כן ירבה. כֵּן רָבָה וְכֵן פָּרַץ. וּמִדְרָשׁוֹ, רוּחַ הַקֹּדֶשׁ אוֹמֶרֶת כֵּן, אַתֶּם אוֹמְרִים פֶּן יִרְבֶּה וַאֲנִי אוֹמֵר כֵּן יִרְבֶּה (סוטה י"א): כן ירבה signifies: so they multiplied and so they grew apace (i. e. God’s determination was carried out, the imperfect tenses of the verbs denoting the continuance of the increase and growth). This is the real meaning; but there is a Midrashic explanation of these imperfect tenses: The Holy spirit (God) said this: You say פן ירבה, “lest they increase”, but “I” say כן ירבה, “thus will they assuredly increase” (Sotah 11a).
ויקצו. קָצוּ בְחַיֵּיהֶם. וְרַבּוֹתֵינוּ דָרְשׁוּ כְּקוֹצִים הָיוּ בְּעֵינֵיהֶם (שם): ויקצו the word means, THEY WERE WEARY OF THEIR LIVES. Our Rabbis explained that it means that they were as thorns (קוצים) in their eyes (cf. Sotah 11a).