Mormons do not believe in the authority of the first seven ecumenical councils

Members of the Mormon Church do not believe in the authority or many of the doctrines established by the creeds of the first seven ecumenical councils of Christianity. In particular, Mormons do not believe in the first six ecumenical council’s definition of God. The Nicene Creed defines God as, God the Father, God the Son, and God the Holy Spirit are three coequal persons in the same substance or essence. So, are Mormons Christians? 

Because Mormons do not believe in the authority of the councils or their definition of the Trinity, many Christians do not consider Mormons to be their fellow Christians. However, Mormons do believe that God the Father, Jesus Christ, and the Holy Spirit are divine. They believe that they are three separate beings, but Heavenly Father and Jesus Christ have corporeal bodies and the Holy Ghost is a spirit being. This definition of God is one of the reasons how are mormons different than Christians.

Most other Christian denominations believe in the authority of the first seven ecumenical councils. They believe in the definition of the Trinity written by these councils. However, some Protestants only believe in the authority and doctrines of the first four ecumenical councils. In fact, the Lutheran Church (the first Protestant denomination) recognizes the authority of the first seven ecumenical councils, but does not give the same value to everything written by these councils. In fact, the Lutheran World Federation says “not all decisions on canonical matters have the same authority as the doctrinal decisions” in the first seven ecumenical councils. Even with these variances and caveats, none of these denominations are excluded from the title of Christian.