#the lord of the land

"The lord of Egypt"

#take grain for the famine in your houses

Here "houses" stands for "family." AT: "take grain to help your family during the famine" (See: [[:en:ta:vol2:translate:figs_metonymy]])

#go your way

"go home" or "leave"

#and you will trade in the land

"and I will allow you to buy and sell in this land"