In an answer to a Question regarding Deity the answer relies on the BoM (see LDS) to explain what is seen in Genesis :
And God said, Let us make man in our image [Genesis 1:26 KJV]
And God saith, `Let Us make man in Our image [Genesis 1:26 YLT].
This astounding revelation of Deity, in the very opening verses of the first scripture ever written (unless the book of Job came first, which may well be so) is surely fundamental to the knowledge of God.
One God speaks and says 'Let us . . .'
Thereafter we are given hints of that which is to come : a promise of a seed of woman raised above angelic authority (which bruises the serpent from above) Genesis 3:15 ; the provision of a sacrificial covering heralding the provision of another humanity, Genesis 3:21 ; a promise of the provision of a lamb, Genesis 22:8 ; the breathtaking revelation of an Angel of the Lord who is referred to as Elohim, speaking out of the midst of the bush (whereas Jehovah looked down from above) Exodus 3:4 . . . . and many, many other scriptures too numerous to speak of particularly at the present time - until one was seen in the furnace, together with three, who is described as 'son of Deity', Daniel 3:25.
If I am to be persuaded that humanity had to wait until 1829 to receive some fundamental 'revelations' regarding Deity that had not been revealed by the coming into the world of Jesus Christ, the only begotten (monogenes) ; the one who - alone in the history of the entire world - received a voice from heaven declaring 'This is my beloved Son', Matthew 3:17 ; the only one who received a further voice from heaven saying 'This is my beloved Son in whom I am well pleased, hear ye him', Matthew 17:5 ; and the only one of whom it was ever declared that there is a 'Revelation (apokalupsis) of Jesus Christ which God gave unto him', Revelation 1:1 - then that persuasion must be firmly based, not on the 'further revelation' itself (for that is what is to be evidenced) but on precedent.
Surely I can be persuaded of fundamental truths regarding the very nature of Deity from within the pages of the Hebrew scriptures and the Greek scriptures, written over a period of two millenia, by a veritable multitude of authors and by, especially, eight authors (nine, depending on the attribution of Hebrews) who were evidently the chosen spokespersons of Jesus Christ : surely.
Those who were doubtful of whom and of what Jesus Christ was, who were doubtful of his person, of his ministry, of his work, and of his doctrine - these were amply persuaded by reference to an overwhelming abundance of previous revelation in the Hebrew scriptures, by reference to Moses and the prophets and the psalms and the history of Israel.
Thus, if I wish to be persuaded of a 'further revelation' (occurring almost two thousand years after Jesus Christ ascended to heaven) especially as there has already been an authorised 'further revelation' by John the Apostle which very plainly warns of any further additions, Revelation 22:18, should I not be able to request that my doubts should be addressed by strong reference to the preceding scriptures and not the repeated assertion of the 'further revelation' that is being addressed ?
My question, therefore is : what support can be given from within the bible (Genesis to Revelation) of the 'further revelation' which is said to have occurred in 1829 ? Or, indeed, that there can possibly be any further revelation at all - until the personal appearance (as promised) of the Lord Jesus Christ accompanied by 'clouds', Revelation 1:7 (of witnesses, Hebrews 12:1) ?
What prophecies ? What references in Moses, the prophets, the psalms, the historical books ? What words of Jesus himself prepare me for a fundamental shift in thinking, a widespread re-stating of doctrine, an altogether unprecedented development in the knowledge of the one true God ?
Or am I being, in effect, told that there is not one true God . . . that there are many gods . . . and little is known of these obscure beings ?
My question is : What prepares me in the holy scriptures already provided over a period of two thousand years - and after another period of another two thousand years - for a fundamental, unprecedented 'revelation' which has been kept from humanity since the foundation of the world and has now been revealed to a single individual ?