Psalms 91:5 Midrash

לֹא־תִ֭ירָא מִפַּ֣חַד לָ֑יְלָה מֵ֝חֵ֗ץ יָע֥וּף יוֹמָֽם׃

Thou shalt not be afraid of the terror by night, Nor of the arrow that flieth by day;