'Middle' in the Bible

Here are the visions of my mind while I was on my bed. While I was watching, there was a tree in the middle of the land. It was enormously tall.

He will confirm a covenant with many for one week. But in the middle of that week he will bring sacrifices and offerings to a halt. On the wing of abominations will come one who destroys, until the decreed end is poured out on the one who destroys."