ה֚וּא מְרוֹמִ֣ים יִשְׁכֹּ֔ן מְצָד֥וֹת סְלָעִ֖ים מִשְׂגַּבּ֑וֹ לַחְמ֣וֹ נִתָּ֔ן מֵימָ֖יו נֶאֱמָנִֽים׃
He shall dwell on high; His place of defence shall be the munitions of rocks; His bread shall be given, his waters shall be sure.
Read halakhic rulings (Jewish law) on Isaiah 33:16: and classical halakhic sources.