וְנִלְחֲמ֥וּ אֵלֶ֖יךָ וְלֹא־י֣וּכְלוּ לָ֑ךְ כִּֽי־אִתְּךָ֥ אֲנִ֛י נְאֻם־יְהוָ֖ה לְהַצִּילֶֽךָ׃ (פ)
And they shall fight against thee; but they shall not prevail against thee; For I am with thee, saith the LORD, to deliver thee.’
Read halakhic rulings (Jewish law) on Jeremiah 1:19: and classical halakhic sources.