It’s not the Bible that’s the issue, but our current understanding of it.

The Bible is generally broken into the laws, the histories, the lamentations, and words of promise all in the Old Testament and then the words and actions of Jesus and His followers in the New Testament.

For Christians, the laws aren’t so much hard laws as much as they are “Tips for a Better Life, featuring the Prequel Stories”. The New Testament is what makes Christianity, and those texts primarily focus on the Grace of God, which is - hastily summarizing here - “All ‘sin’ requires the shedding blood, but I’ve already done that and forgiven everything, so just do your best”.

Different gospels say different things about the same events. Different letters are written to different ancient churches by different people about many different issues. Different texts and histories are included or discarded dependent upon how any particular sect of Christianity worships. The Bible is a collection of the words of people who are driven by God for their purpose at their time, and so it is always going to be subject to adaptable understandings.

All this is because mortal, imperfect people are in charge of interpreting, translating, and communicating the words of an entity that “exists” outside the confines of matter, energy, space, or time. As time continues, our understanding of the word adapts and changes.