I am a Trinitarian Christian.
And the concept of the Trinity is one that I didn't understand until recent years, even after being taught in church and elsewhere that the Trinitarian view is the correct view of the Godhead.
It makes complete sense to me now. In fact, I struggle with religion but I'm completely confident in the Trinity.
In my mind, I don't think that anyone else is/was better equipped to teach us how to live for God and abandon our flesh (our worldly ways) for God, than GOD in the flesh. As God IS LOVE...it makes perfect sense to me, that HE would come to us in the flesh as the SON...Christ Jesus. After all, we are HIS children. So, it makes perfect sense to me that He would manifest Himself as one of us...as a Child of the Ultimate Father to show us how to commune with Him.
The main difference in my opinion, between Triniarian Christians and non-Trinitarian Christians are differences in scriptural interpretation.
For example...
"For the grace of God that brings salvation has appeared to all men, teaching us that denying ungodliness and worldly lusts, we should live soberly, righteously, and godly in the present age, looking for the blessed hope and glorious appearing of our great God and Savior Jesus Christ, who gave Himself for us, that he might redeem us from every lawless deed and purify for Himself His own special people, zealous for good works. Speak these things, exhort and rebuke with all authority. Let no one despise you." Tit. 2:11-15
"For unto us a Child is born, Unto us a Son is given: and the government will be upon His shoulder. And His name will be called Wonderful, Counselor, Mighty God." Isaiah 9:6
"My Father who has given them to me is greater than all: and no one is able to snatch them out of my Father's hand. I and My Father are one." John 10:29-30
"Jesus said to them, "Most assuredly, I say to you, before Abraham was, I AM." John 8:58
After Christ arose...he spoke to Thomas and when Thomas saw him he replied...
"My Lord and my God!." John 20:28
In John 1:1-5...the Eternal Word is defined as being both God and Christ...
"In the beginning, was the Word and the Word was with God and the Word was God. He was in the beginning with God. All things were made through Him, and without Him nothing was made that was made. In Him was life and the life was the light of men. And the light shines in the darkness and the darkness did not comprehend it."
"He is the image of the invisible God, the firstborn of all creation. For by Him all things were created that are in heaven and that are on earth, visible and invisible, whether thrones or dominions or principalities or powers. All things were created through Him and for Him. Colossians 1:16
...in the scriptures (all taken from the NKJV of the Bible) I posted, I believe that the concept of the Trinity is implied.
And then when applying this to my own spiritual walk....it clicks...it makes perfect sense.
My God, is ONE maginificant God. He is limitless, all powerful and all knowing. In addition to being the Creator and Lord...He is also Father, Christ and Spirit.