'Innermost' in the Bible

“But [in fact] you will be brought down to Sheol,To the remote recesses of the pit (the region of the dead).

Therefore I moan like the sound of a lyre for Moab,as does my innermost being for Kir-heres.

By thy servants hast thou defied the Lord, and hast said, With the multitude of my chariots am I come up to the height of the mountains, to the innermost parts of Lebanon; and I will cut down the tall cedars thereof, and the choice fir-trees thereof; and I will enter into its farthest height, the forest of its fruitful field;