כִּ֣י לֹ֤א בְחִפָּזוֹן֙ תֵּצֵ֔אוּ וּבִמְנוּסָ֖ה לֹ֣א תֵלֵכ֑וּן כִּֽי־הֹלֵ֤ךְ לִפְנֵיכֶם֙ יְהוָ֔ה וּמְאַסִּפְכֶ֖ם אֱלֹהֵ֥י יִשְׂרָאֵֽל׃ (ס)
For ye shall not go out in haste, Neither shall ye go by flight; For the LORD will go before you, And the God of Israel will be your rearward.
Read halakhic rulings (Jewish law) on Isaiah 52:12: and classical halakhic sources.