There are two main themes of Ephesians: (1) Christ has reconciled all creation to himself and to God, and (2) Christ has united people from all nations to himself and to one another in his church. These great deeds were accomplished through the powerful, sovereign, and free working of the Triune God—Father, Son, and Holy Spirit—and are recognized and received by faith alone through his grace. In light of these great truths, Christians are to lead lives that are a fitting tribute of gratitude to their great Lord.