3 But the Egyptians are mere mortals and not God; their horses are flesh and not spirit. When the Lord stretches out his hand, those who help will stumble, those who are helped will fall; all will perish together.

Matthew Henry's Commentary on Isaiah 31:3

Commentary on Isaiah 31:1-5

(Read Isaiah 31:1-5)

God will oppose the help sought from workers of iniquity. Sinners may be convicted of folly by plain and self-evident truths, which they cannot deny, but will not believe. There is no escaping the judgments of God; and evil pursues sinners. The Lord of hosts will come down to fight for Mount Zion. The Lion of the tribe of Judah will appear for the defence of his church. And as birds hovering over their young ones to protect them, with such compassion and affection will the Lord of hosts defend Jerusalem. He will so defend it, as to secure its safety.