29 The LORD your God will cut off before you the nations you are about to invade and dispossess. But when you have driven them out and settled in their land,

Read Deuteronomy 12:29 Using Other Translations

When the LORD thy God shall cut off the nations from before thee, whither thou goest to possess them, and thou succeedest them, and dwellest in their land;
"When the LORD your God cuts off before you the nations whom you go in to dispossess, and you dispossess them and dwell in their land,
“When the LORD your God goes ahead of you and destroys the nations and you drive them out and live in their land,