'Innermost' in the Bible

Let the evil of the wicked come to an end, but establish [the] righteous, and test the hearts and innermost being, O righteous God.

I will bless Yahweh who advises me; yes, [at] night my {innermost being} instructs me.

Prove me, O Yahweh, and test me. Try my {innermost being} and my {mind}.

Hear the voice of my supplication (specific requests, humble entreaties) as I cry to You for help,As I lift up my hands and heart toward Your innermost sanctuary (Holy of Holies).

Indeed, you are pleased with truth in the inner person, and you will teach me wisdom in my innermost parts.

When I became embitteredand my innermost being was wounded,

Thy wife shall be as a fruitful vine, In the innermost parts of thy house; Thy children like olive plants, Round about thy table.