The second example of a changed life in Philippi is a slave girl who had a spirit that enabled her to tell the future (a demon that gave her special knowledge).
Even though the demon inside her spoke the truth, Paul, like Jesus, did not allow it to share the Christian message (compare Mark 1:25, 34; 3:11–12; Luke 4:35, 41). The Lord commanded that his disciples, not those who oppose the message, should proclaim the gospel (Acts 1:8; 9:15; 26:15–18; Matthew 28:18–20; Luke 24:46–49; John 20:21; see Acts 22:15).