Woe to those who go down to Egypt for help, who rely on horses, who trust in the multitude of their chariots and in the great strength of their horsemen, but do not look to the Holy One of Israel, or seek help from the LORD. Yet he too is wise and can bring disaster; he does not take back his words. He will rise up against that wicked nation, against those who help evildoers. 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.

So God's sayin here, ' You're relying on things that aren't me and that's bad. Those guys could be good guys. They could be wise and just and good and powerful. But they aren't God. God is always the one to turn to, no matter what.