'Grass of the Field' in the Bible

So the Moabites said to the elders of Midian, "Now this mass of people will lick up everything around us, as the bull devours the grass of the field. Now Balak son of Zippor was king of the Moabites at this time.

But leave its taproot in the ground, with a band of iron and bronze around it surrounded by the grass of the field. Let it become damp with the dew of the sky, and let it live with the animals in the grass of the land.

As for the king seeing a holy sentinel coming down from heaven and saying, 'Chop down the tree and destroy it, but leave its taproot in the ground, with a band of iron and bronze around it, surrounded by the grass of the field. Let it become damp with the dew of the sky, and let it live with the wild animals, until seven periods of time go by for him' --