This means that they would not allow their sons and daughters to marry them. AT: "would not give our daughters to marry the people of the land or take their daughters to marry our sons" (See: [[rc://en/ta/man/translate/figs-explicit]])
# the people of the land
This refers to the people who live in their land who do not worship Yahweh. AT: "the people of this land who do not worship Yahweh" (See: [[rc://en/ta/man/translate/figs-explicit]])
# We promised ... we would not give ... we would not buy ... we will let ... we will cancel
This means that they will not require that people pay them what they owe. AT: "we will cancel all debts that people owe us" or "we will tell people that they no longer have to pay us back"