Jeremiah 1:17-19

17 Thou, therefore, shalt gird thy loins, and arise, and speak unto them, all that, I, command thee, be not dismayed because of them, lest I dismay thee before their face.

18 I, therefore lo! I have set thee to-day as a fortified city, and as a pillar of iron and as walls of bronze, over all the land, against the kings of Judah, against her princes, against her priests and against the people of the land.

19 And they will fight against thee but shall not prevail against thee, for with thee, am I, Declareth Yahweh, to deliver thee.