I can leave a comment on how I used to believe:
OT: Wow, that's hard to swallow that the God I worship seemed so cruel to people He created. It must be that (and often quoted by Christians) "God has mysterious ways that we don't have to capacity to understand now". The cultures were given the chance and refused to worship the one and only true God, so it must be that they deserve to die. This is the Word of God and I have to believe it, because I want to be saved from Hell.
NT: Wow, that's a long, long, time to suffer in unimaginable torment for not believing in Jesus. "God has mysterious ways that we cannot understand now", but unless I want to be tortured forever and ever, I have to believe that God knows best and have to accept that my understanding is limited. But what about these people who are good, and they are still going to hell because they don't believe in Jesus? Yes, not one person is good because the Word says so; all have fallen short of the glory of God. It doesn't matter how many good deeds they do because of the goodness of their hearts. They are still sinners because they don't believe. This is the Word of God and I have to believe, because I want to be saved from Hell.
RT (real testament): Wow, these scriptures contradict each other and I cannot find a way to reconcile them. If God is perfect then His Word should be perfect, and yet there are errors along with these contradictions.
Fiction, Jewish history (some elaborate tales added), fictitious god, or misunderstood ancient alien "god", collection of stories, letters written with errors, borrowed fables from other cultures. Man made religion to control people by fear.
I no longer call myself a Christian. I can still have Christian kindness without religion, and in addition, expands outside of biblical limits.