https://ab-melchizedek.medium.com/the-trinity-was-invented-centuries-after-christianity-a-rebuttal-from-the-old-and-new-testament-1d53d8c12df5

I have already written an article showing that is false my friend. Anybody that told you that is a donkey. What Nicea did was to ARTICULATE the doctrine that was already in the scriptures. Even Non-Christian Jewish scholars like Benjamin Sommer and Alex Segall have acknowledged a plurality of persons within the God of the Hebrew scriptures, the former explicitly says the Christian trinity is not inconsistent with the Hebrews scriptures.

So that said, do you now see why God using " US" in the Bible or an allusion to a plurality within the God of the Bible is not pagan?