Commentaire sur Les Psaumes 91:4: Rachi, Rambam, Ibn Ezra et plus

בְּאֶבְרָת֨וֹ ׀ יָ֣סֶךְ לָ֭ךְ וְתַֽחַת־כְּנָפָ֣יו תֶּחְסֶ֑ה צִנָּ֖ה וְֽסֹחֵרָ֣ה אֲמִתּֽוֹ׃

Il te recouvre de ses vastes pennes; sous ses ailes tu trouves un refuge: sa bonté est un bouclier et une cuirasse.

Rashi on Psalms

With His wing He will cover...you will take refuge You will be covered.

Rashi on Psalms

an encompassing shield Heb. צנה וסחרה. This is a shield that encompasses a man closely on his four sides. וסֹחֵרָה is an expression of סְחוֹר סְחוֹר, around.