This portion of Al-Kitab takes its name from people to whom it was originally written—followers of ‘ISA AL-MASIH who lived in the city of Ephesus. Ephesus was located in what is now modern-day Turkey. The Apostle Paul wrote this letter to explain a “mystery,” or previously-hidden truth now being revealed. The “mystery” is this—that God has made a congregation (or church, community) composed of Jews and non-Jews of all nations together. By faith in ‘ISA AL-MASIH both Jews and non-Jews can be part of God’s spiritual family. By becoming one with ‘ISA AL-MASIH, all believers are one with each other. This congregation is called the “body” of AL-MASIH. ‘ISA AL-MASIH himself is the “head” of the congregation, his “body.” Another comparison is made from building construction in which the congregation is said to be a building, and ‘ISA AL-MASIH is the “cornerstone.” Also, the congregation is a “bride” and ‘ISA AL-MASIH is the “groom.” This scripture also says much concerning love, forgiveness, mercy, and holy living.