בְּאֶבְרָת֨וֹ ׀ יָ֣סֶךְ לָ֭ךְ וְתַֽחַת־כְּנָפָ֣יו תֶּחְסֶ֑ה צִנָּ֖ה וְֽסֹחֵרָ֣ה אֲמִתּֽוֹ׃
He will cover thee with His pinions, And under His wings shalt thou take refuge; His truth is a shield and a buckler.
Read halakhic rulings (Jewish law) on Psalms 91:4: and classical halakhic sources.