This is a poetical and ironical call to the Egyptians to muster their forces; and implies that all their courage and efforts would be vain.
Jeremiah 51:11-
12 Make bright the arrows; gather the shields: the LORD hath raised up
the spirit of the kings of the Medes: for
his device [
is] against Babylon, to destroy it; because it [
is]
the vengeance of the LORD, the vengeance of his temple. ... Set up
the standard upon the walls of Babylon, make the watch strong, set up the watchmen, prepare the
ambushes: for the LORD hath both devised and done that which he spake against the inhabitants of Babylon.
Isaiah 8:9-
10 Associate yourselves, O ye people,
and ye shall be broken in pieces; and give ear, all ye of far countries:
gird yourselves, and ye shall be broken in pieces; gird yourselves, and ye shall be broken in pieces. ... Take
counsel together, and it shall come to nought; speak the word, and it shall not stand:
for God [
is] with us.
Isaiah 21:5 Prepare the table, watch in the watchtower,
eat, drink:
arise, ye princes, [
and] anoint the shield.
Joel 3:9 Proclaim ye this among the Gentiles;
Prepare war,
wake up the mighty men, let all the men of war draw near; let them come up:
Nahum 2:1 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.
Nahum 3:14 Draw thee waters for the siege,
fortify thy strong holds: go into clay, and tread the morter, make strong the brickkiln.