# Then I will light a fire

"Then I will cause the Babylonian army to light a fire". Here "I" refers to Yahweh.

# Nebuchadnezzar will ... He will

"Nebuchadnezzar's army will ... They will"

# burn them or capture them

"burn the Egyptian idols or take them"

# He will clean out the land of Egypt just as shepherds clean vermin off their clothes

"He will take or destroy everything valuable in Egypt just as a shepherd is careful to get every insect off of his clothes"