'Mounds' in the Bible

But Israel did not burn any of the cities located on mounds, except for Hazor; it was the only one Joshua burned.

If he piles up silver like dust and stores up clothing like mounds of clay,

Then the king of the north will advance and will build siege mounds and capture a well-fortified city. The forces of the south will not prevail, not even his finest contingents. They will have no strength to prevail.