God’s intent is to restore the earth and its inhabitants, and to reconcile everything to Himself. In keeping with that great mission, Paul sought to bring shalom—peace, wholeness, communion—to the body of Christ by initiating reconciliation between Jewish and Gentile believers.
Man is in God’s image, and woman is in God’s image. But that’s not saying enough. God is three-in-one, He is plural, He lives in communion within Himself. So one person is not enough, whether male or female, to accurately display God’s image. No, it must be plural: People are God’s image. That’s what God was saying about Himself.