He that dasheth in pieces is come up before thy face: keep the munition, watch the way, make thy loins strong, fortify thy power mightily. He that dasheth in pieces - Or scattereth. The Chaldeans and Medes.
Keep the munition - Guard the fenced places. From this to the end of the fifth verse, the preparations made at Nineveh to repel their enemies are described. The description is exceedingly picturesque.
Watch the way - By which the enemy is most likely to approach.
Make thy loins strong - Take courage.
Fortify thy power - Muster thy troops; call in all thy allies.