'Within' in the Bible

She continued doing this for several days. Then Paul, being greatly annoyed and worn out, turned and said to the spirit [inside her], “I command you in the name of Jesus Christ [as His representative] to come out of her!” And it came out at that very moment.

But Paul went down and threw himself on him and embraced him, and said [to those standing around him], “Do not be troubled, because he is alive.”