To confirm that these days of Purim should be observed at their appointed times, as Mordecai the Jew and Queen Esther had commanded [the Jews], and as they had ordained for themselves and for their descendants in the matter of their fasts and their lamenting.
But you [Jeremiah], gird up your loins! Arise and tell them all that I command you. Do not be dismayed and break down at the sight of their faces, lest I confound you before them and permit you to be overcome.
Son of man, I have made you a watchman to the house of Israel; therefore hear the word at My mouth and give them warning from Me. [Isa. 52:8; 56:10; 62:6; Jer. 6:17.]
So Jonah arose and went to Nineveh according to the word of the Lord. Now Nineveh was an exceedingly great city of three days' journey [sixty miles in circumference].