LDS belief in a nutshell is that God the Father has always existed, Jesus Christ has always existed, and that all others who have lived or will live on the Earth have always existed. LDS belief is that there is no creation ex-nihilo. The elements (atoms, etc.) are also eternal. So any similarity between LDS belief and Arianism may be in that the Son is subordinate to the Father (if that is a component of Arianism). Christ said as much in John 14:28 (…my Father is greater than I) and John 6:38 (For I came down from heaven, not to do mine own will, but the will of him that sent me.)
I hope this helps…
I responded to this issue somewhat in another thread. I think the foundational issue in these discussions is to understand that Trinitarians fully believe that the Father, Son, and Holy Ghost are distinct Persons, they aren’t each other (as the Athanasian Creed teaches), they aren’t faces or manifestations of one person, etc. Far too often the Trinity is confused with the Modalism heresy.
The issue isn’t just subordination, since Trinitarians do accept a form of subordination within the Trinity (for example, Trinitarians believe that the Son is begotten of the Father, and the Holy Ghost proceeds from the Father and/through the Son, while the Father is neither begotten nor proceeds, and is the “fount” of Divinity within the Trinity.).
What Trinitarians reject is a subordination of
divinity, where the Son and the Holy Ghost are somehow “less” divine than the Father. Trinitarians believe that the Father, Son, and Holy Ghost are all fully God, fully Divine. They have eternally existed in the relationship they are in, i.e. the Trinity. They haven’t just always existed, but they have always existed
as the unity of the Trinity.
The LDS view on God isn’t Arianism
per se, but it does find similarities with the Arian view. Most importantly, there is the belief that the Son was created by the Father at some point. Yes, LDS do believe that we all have an eternal “intelligence” that was never created, and matter is co-eternal with God. However, LDS believe that we were all begotten spirit sons and daughters of God the Father and Heavenly Mother. This includes the Son and the Holy Ghost. So, the Father and Mother gave us some sort of existence as their begotten spiritual children, and in a sense, we were created by them. As mentioned, this view is very different from how traditional Christians view God, and would not be compatible with the Trinitarian view, which, while accepting three distinct Persons, as well as a form of subordination within the Trinity (but not subordination of Divinity or “substance”), does not accept that the Son and Holy Ghost had to be spiritually born at some point.
So, in that sense, the LDS view is somewhat similar to Arianism (and certainly not the same as the view held by the early Church Fathers).
From the Encyclopedia of Mormonism:
**
There is indeed indication that the intelligence dwelling in each person is coeternal with God. It always existed and never was created or made (D&C 93:29). In due time that intelligence was given a spirit body, becoming the spirit child of God the Eternal Father and his beloved companion, the Mother in Heaven. This spirit, inhabited by the eternal intelligence, took the form of its creators and is in their image (Ballard, p. 140).
To the Prophet Joseph Smith it was revealed that we are all literal spirit sons and daughters of heavenly parents. **
eom.byu.edu/index.php/Premortal_Life
ONLY BEGOTTEN. Jesus Christ is the only being begotten by the Father in mortality. His full title is “the Only Begotten of the Father in the flesh.” Since Mormons believe all humans were spiritually begotten by the Father before creation, “Only Begotten” is understood as being limited to mortality.
eom.byu.edu/index.php/Firstborn_of_God
**
Fundamental to the teachings of The Church of Jesus Christ of Latter-day Saints is the concept that all human beings were born as spirit sons and daughters of heavenly parents before any were born as mortals to earthly parents. Latter-day Saints believe that the eldest and firstborn spirit child of God is Jehovah and that it was he who was later born with a physical body to mary as Jesus Christ. That is, Jehovah of the Old Testament became Jesus Christ of the New Testament when he was born into mortality. **
eom.byu.edu/index.php/Jesus_Christ#Jesus_Christ:_Firstborn_in_the_Spirit