'Heaps' in the Bible

And there came a messenger, and told him, saying, They have brought the heads of the king's sons. And he said, Lay ye them in two heaps at the entrance of the gate until the morning.

Hast thou not heard how I have done it long ago, and formed it of ancient times? now have I brought it to pass, that it should be thine to lay waste fortified cities into ruinous heaps.