When Miss Maudie says, "but sometimes the Bible in the hand of one man is worse than a whiskey bottle in the hand of--oh, your father." What person is she criticizing, and what is the point of her criticism?

I believe Miss. Maudie is criticizing the Radley's for keeping Boo locked away. She is insinuating that sometimes people can take their religion too far...... in the same way someone can take the consumption of alcohol too far.

I believe it means that people are hypocrites, and they can use Bible verses against you, and do the same thing themselves, and when you confront them, they use another verse.