If the Seventh-day Adventists were to use the same way of reasoning that is used in proving the trinity they may end up being able to prove that Sunday actually is the new Sabbath day.
All great theologians today admit that the trinity is not taught in scripture, but that there are hints to a trinity. These hints are that the word God, Son and Holy Spirit are used in the same verse. Verses such as Matt 28:19, 1 Cor. 12:3, 2 Cor. 13:14, Acts 7:55, Romans 15:16 and 1 John 5:7. But if you read these verses... does it teach that they are all one substance, that all threes are co-equal, all knowing. No and this is why I cannot agree with the doctrine of the trinity. There is no thus saith the Lord supporting the teachings found in the doctrine of the trinity.
Those that claim to believe in the trinity need to show verses stating that all three are one God, that all three are all knowing, and that all three are of one and the same substance. Unfortunately for the trinitarian, these verses do not exist. So as long as the trinitarians feel comfortable believing something that isn't explicitly stated in scripture, then that is their choice. But as for me, I will demand a clear thus saith the Lord for every doctrine that we cling to.
Now if we were to use the same reasoning for establishing doctrine then we may as well start believing that Sunday is the new Sabbath. Because there is no clear verse stating the change of the Sabbath from Saturday to Sunday... there are still verses in the Bible that show that the disciples did break bread on the first day and that a collection (offering was taken). Not only that but Christ rose on the first day and the Holy Ghost was given on the first day as well. So the first day of the week is a very important day and maybe we should keep that day?? But of course I would never accept this kind of reasoning... it's wrong and it is the same kind of reasoning used for supporting the trinity.
And we must be careful not to elevate Ellen White above the Bible. Ellen White is not the final authority on doctrine, the Word of God is. If you are going to use Ellen White as a rule of establishing doctrine, then you are still being misled. All her quotes need to harmonize over each and every topic. We do the same with the Word of God.
So again... does Ellen White state that all three (Father, Son, Holy Spirit) are of the one same substance? No she does not, yet the trinitarian believe this is what truth is. Does Ellen White state that all three (Father, Son, Holy Spirit) are co-equal and all knowing? No she does not, yet the trinitarian believe that the trinity is still the truth. The trinitarian must provide us with a quote from the Word of God stating that all three (Father, Son, Holy Spirit) are of the one and same substance, are co-equal and all knowing. They will not be able to find one in the Word of God, yet this is what they believe. Can any trinitarian please post a quote from Ellen White showing that she believed in the same trinity that they believe? Can anyone produce a quote where she states that all Three are of the one and same substance, co-equal, and all knowing? Even there they will not be able to find one, yet this is what they believe. So what is the trinity doctrine based on?