Common benefits of religion include providing a community and the accompanying sense of group belonging, a hope and comforting support during hard times, and amoral structure promoting positive values like love and service.
Harms of religion include often stressful demands of committing personal resources like money, time, and effort; structure and teachings that devalue women, ratial minorities, LGBTQ+ persons, those who lose faith, and individuals who break the moral codes; and the promotion of flawed epistemology.
Various thoughts and reference points on Biblical Historicty and manuscripts are found here: Bible Notes
Popular religions have positives and negatives.