Yes 666 is Satans very own false trinity. He's still below God. You can call out and expose the lies and corruption that you see in churches for there are many false prophets (Matthew 24:11) and many who claim to be Christian yet are actually illegitimate (Hebrews 12:8) but don't consider God's Word to be a book of stories.
Christianity came about after the ascension of Christ, but people following God by faith goes farther back than that. Yes, there are some things written in the Bible that borrowed from culture, like when the Apostle Paul compared following God to training for the Olympics (the original Roman Olympics) for example. Many prophets and apostles had to write in a way that correlated with the times they lived in and used symbolism so that people could relate and understand what God wanted for them and from them. Also, other religions and cultures borrowed from the Bible. Isn't it strange how every culture has a story about a flood, just like the Bible does? It's because it's not a story but an actual event and now we have more scientific evidence than ever before to prove it. Same can be said about "demigods" which are the offspring of a god (little g) and a human. Most cultures talk about demigods and the Bible also confirms it to be true in Genesis 6. Other cultures call them "gods", even Hollyw0od does with the M@rvel heroes, but God's Word calls them the sons of god, aka, fallen angels/demons.
The demonic forces don't want you to repent and follow Christ so they try to deceive people by calling themselves gods and by trying to remove the efficacy of the Bible. I would encourage you to read through it again and truly seek God. Don't trust in someone else like a preacher to read it for you and then have them try to explain it by regurgitating their man made doctrines.
When reading any book, it's not about the meaning it has for you, it's actually about the author's intentions for writing it. The same is true for the Bible. The author of the Bible, God, wants his sinful creation to reconcile and come into a loving relationship with him. Don't discredit it because of Christians who borrow so many pagan traditions and who many of them will stand condemned and say lord lord didn't I do mighty works in your name? (Matthew 7:22). If you want to correctly divide and exposit God's Word, then ask the author to reveal the truth to you (James 1:5) and if you want someone to study God's Word with and get a different perspective from, then I'm available.