Isaiah 49:2 Halakhah

וַיָּ֤שֶׂם פִּי֙ כְּחֶ֣רֶב חַדָּ֔ה בְּצֵ֥ל יָד֖וֹ הֶחְבִּיאָ֑נִי וַיְשִׂימֵ֙נִי֙ לְחֵ֣ץ בָּר֔וּר בְּאַשְׁפָּת֖וֹ הִסְתִּירָֽנִי׃

And He hath made my mouth like a sharp sword, In the shadow of His hand hath He hid me; And He hath made me a polished shaft, In His quiver hath He concealed me;

Read halakhic rulings (Jewish law) on Isaiah 49:2: and classical halakhic sources.