The letter to the Ephesians is filled with theological wisdom and practical insight for how to live as a Christian. Perhaps better than any book in the New Testament, this letter highlights how to define our identity through our relationship to Christ. In it we see we have been chosen by God, called to be His children, and saved by grace. Furthermore, we see how this calling and identification with Christ leads us to be unified with one another both in the church and in our interpersonal relationships. It calls us to live lives of holiness and persevere in our faith despite obstacles. Through Paul’s letter, we find out who we are in Christ.