'Middle' in the Bible

So she arose in the middle of the night and took my son from beside me while your maidservant slept, and laid him in her bosom, and laid her dead son in my bosom.

The lowest story was five cubits wide, and the middle was six cubits wide, and the third was seven cubits wide; for on the outside he made offsets in the wall of the house all around in order that the beams would not be inserted in the walls of the house.

The doorway for the lowest side chamber was on the right side of the house; and they would go up by winding stairs to the middle story, and from the middle to the third.

On the same day the king consecrated the middle of the court that was before the house of the Lord, because there he offered the burnt offering and the grain offering and the fat of the peace offerings; for the bronze altar that was before the Lord was too small to hold the burnt offering and the grain offering and the fat of the peace offerings.