I do believe thru my research on both sides of this issue/doctrine that I see what's believed on the most part. And I ask you this sincerity. thing I'm not getting, and have not been given a substantial answer for (and I ask this without reproach nor disrespect or a caniving cover) and if you know. ..." why do some believe that believing in the aspect of the Father, Son, and the Spirit as being One (even calling it 3 in one, though I believe i do understand ,with what He's permitted us to in: how the Father And Yeshua work with each other and even in us through their SPIRIT). ..but what I'm not getting is how Believing that just their basic doctrine of "believing 3 in 1 is worshipping the devil, a false god, part of the mark, ect. ?"

I can see if one is praying to the Holy Spirit and doing more than thinking that It's it's own Entity in and of itself. But Submission to and yet not bowing down and thinking of it anything other or more than the Godhead (well except calling it :'God the Spirit,') is actually transgressing first 2 Commandments. I'd like to get your views and others' input on this.
ANSWER: You have asked a critical and very important question that all need to KNOW and UNDERSTAND because it IS LIFE ETERNAL = John 17:3/Jer 9:24.
IDOL WORSHIP is SATAN WORSHIP - idolatry connotes the worship of something or someone other than God as if it were God.Idolatry has been considered as the "worship of false gods" and is forbidden.

When I realized going to a SDA church today was worshiping the devil via the Trinity - the devil setting himself up as god and showing himself that he is god 2 Thessalonians 2:4 - I certainly did not take my babies to sing and pray to the devil's Trinity anymore - even to pray to it over food makes it offering your food to idols.See John 17:3. So I do not want a Trinitarian praying for me or over my food because it is the exact same thing as praying to a idol - even though you don't have a idol of wood or stone to rest your eye upon - it is a philosophical idol or intellectual concept of who God and His Son are in your mind and how you understand and know them. See 1 Cor 5:11 and Jer 9:24. So it is critical to have a right understanding of this terrible change that has been snuck into the GC SDA churches right under the sleepy laodiceans.