Commentary for Nehemiah 9:12

וּבְעַמּ֣וּד עָנָ֔ן הִנְחִיתָ֖ם יוֹמָ֑ם וּבְעַמּ֥וּד אֵשׁ֙ לַ֔יְלָה לְהָאִ֣יר לָהֶ֔ם אֶת־הַדֶּ֖רֶךְ אֲשֶׁ֥ר יֵֽלְכוּ־בָֽהּ׃

Moreover in a pillar of cloud Thou didst lead them by day; and in a pillar of fire by night, to give them light in the way wherein they should go.

Rashi on Nehemiah