The locusts are commanded not to harm the earth or the grass, but only those men who bear no marks of the spirit's dominion over the flesh. Such men cannot withstand its false allure, universal spread, and mighty influence.
This contagious sickness can pass by only those who avoid every influence of the spirit of this world upon their soul.
According to Andrew of Caesarea, the locusts depict evil demons prepared for battle against us. The golden crowns indicate their victories over us. The hair like women's hair speaks of demonic sensuality.
The lions' teeth signify ferocity and a disposition to murder. The iron breastplates show hardness of heart. The scorpions' tails reveal the venom of sin. The king of the locusts is the devil. The five months are the five senses, through which the demons act upon man.