# All the earth's inhabitants are considered by him to be as nothing

"He considers all the earth's inhabitants as nothing" 

# All the earth's inhabitants

"All the people on the earth"

# the army of heaven

"the angel armies in heaven"

# whatever suits his will

"whatever satisfies his purpose" or "anything he wants to do"

# No one can say to him, 'Why have you done this?'

"No one can question what he does."