לֹא־יִֽהְיֶה־לָּ֨ךְ ע֤וֹד הַשֶּׁ֙מֶשׁ֙ לְא֣וֹר יוֹמָ֔ם וּלְנֹ֕גַהּ הַיָּרֵ֖חַ לֹא־יָאִ֣יר לָ֑ךְ וְהָיָה־לָ֤ךְ יְהוָה֙ לְא֣וֹר עוֹלָ֔ם וֵאלֹהַ֖יִךְ לְתִפְאַרְתֵּֽךְ׃
The sun shall be no more thy light by day, Neither for brightness shall the moon give light unto thee; But the LORD shall be unto thee an everlasting light, And thy God thy glory.
Rashi on Isaiah
You shall no longer have You shall not require the light of the sun.
Ibn Ezra on Isaiah
The sun shall be no more, etc. Thou wilt not want the light of the sun, because of the light of God.