I’m sort of agnostic on the issue, but I lean away from the trinity. I don’t hold a firm stance at all. God is way bigger than we can grasp. With that said, I have a couple thoughts. (btw I started doubting the trinity long before I became a full blown heretic )
The pagan trinity has been around long before the NT. Could it be a corruption? yes. It seems like God would have revealed it to the “good guys” first. Not everything is revealed to the angels, like the gospel for instance (assuming fallen angels are where the pagan version would come from, fallen angels is a whole other ball of wax, especially satan/lucifer which I definitely don’t hold to)
John 17:3 "This is eternal life, that they may know You, the only true God, and Jesus Christ whom You have sent.
John 20:17 Jesus replied, “Do not touch me, for I have not yet ascended to my Father. Go to my brothers and tell them, ‘I am ascending to my Father and your Father, to my God and your God.’”
Rom 1:8 First of all, I thank my God through Jesus Christ for all of you, because your faith is proclaimed throughout the whole world.
John 8:42 Jesus replied, “If God were your Father, you would love me, for Ihave come from God and am now here. I have not come on my own initiative, but he sent me.
1 John 2:1 My little children, I am writing these things to you so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous;
Here are the other usages of begotten(monogenes) besides of Jesus:
[Luk 7:12 ESV] - As he drew near to the gate of the town, behold, a man who had died was being carried out, the only son of his mother, and she was a widow, and a considerable crowd from the town was with her.
[Luk 8:42 ESV] - for he had an only daughter, about twelve years of age, and she was dying. As Jesus went, the people pressed around him.
[Luk 9:38 ESV] - And behold, a man from the crowd cried out, "Teacher, I beg you to look at my son, for he is my only child.
[Hbr 11:17 ESV] - By faith Abraham, when he was tested, offered up Isaac, and he who had received the promises was in the act of offering up his only son,
Jn 17:11 Holy Father, protect them by the power of your name, the name you gave me, so that they may be one as we are one. (are believers a trinity together?)
John 14:28"You heard that I said to you, I go away, and I will come to you. If you loved Me, you would have rejoiced because I go to the Father, for the Father is greater than I.
John 5:30 "I can do nothing on My own initiative. As I hear, I judge; and My judgment is just, because I do not seek My own will, but the will of Him who sent Me.
Col 1:9 For it was the Fathers good pleasure for all the fullness to dwell in Him
1 Co 15:28And when all things are subjected to him, then the Son himself will be subjected to the one who subjected everything to him, so that God may be all in all.
The trinity is not in the bible anywhere.
I don’t believe Jesus was created, because all things that have been created were created through Him, I see it that He was born from the father, birthed, kind of like a clone, He is the image (icon) of God, He reveals the Father, He is the seen that leads to the unseen. I also believe that most/all? of the time we see YHWH in the OT it is the son. No man has seen the Father at any time. He is DabarYHWH, and the word of the Lord came to me, He touched me, He spoke to me etc.
Again, this is one of those issues I don’t really take a firm stance on, but these thoughts above are what lead me to my soft conclusions.