<p>5:32 <i>This mystery is great, but I speak in regard of Christ and of the church</i>- The idea of &quot;mystery&quot; has been used earlier in Ephesians concerning the strange and profound unity possible between Jew and Gentile in Christ. The idea of two becoming one has been used earlier about the unity of Jew and Gentile in the body of Christ, the church. The bond between persons enabled by the Spirit is indeed a mystery which has now been exhibited in practice. This is why the Lord in Jn. 17 spoke of the unity which His sacrifice would enable as something new, unique and powerfully persuasive as a witness in this world. The connection with the language of Jew-Gentile unity is to make the point as noted on :31- that unity within the church is to be reflected between believing partners.</p>