'Inward' in the Bible

You have not for the second time acquired the consciousness of being--a consciousness which fills you with terror. But you have acquired a deep inward conviction of having been adopted as sons--a conviction which prompts us to cry aloud, "Abba! our Father!"

Therefore we are not cowards. Nay, even though our outward man is wasting away, yet our inward man is being renewed day by day.

The Lord, however, stood by me and filled me with inward strength, that through me the Message might be fully proclaimed and that all the Gentiles might hear it; and I was rescued from the lion's jaws.