An excerpt from “BibleRef.com” entitled, “What Does Ephesians 3:9 Mean?” states: “Paul's mission was to Gentiles in particular, but by no means was his message limited. He preached to both Jews and Gentiles (Romans 1:16; Acts 13:13–43). He spoke in Israel and far beyond, seeking even to take the gospel to Spain (Romans 15:24, 28). This preaching included "the plan of the mystery hidden for ages." The mystery was that Jews and Gentiles could receive salvation equally through Jesus Christ (Ephesians 3:3–6).” The article may be viewed at: https://www.bibleref.com/Ephesians/3/Ephesians-3-9.html [Reflection is based on the Bible Reference – Ephesians 3:9]