'Dry' in the Bible

The unclean spirit, when he has gone out of the man, passes through dry places, seeking rest, and finding none, he says, 'I will turn back to my house from which I came out.'

For if they do these things in the green tree, what will be done in the dry?"

By faith, they passed through the Red Sea as on dry land. When the Egyptians tried to do so, they were swallowed up.