None because reading the bible is a waste of time.
I disagree, the bible is one of the most important books ever wrote. You should definetly read, if you're a christian or not.
Because if you are one, reading it is kindda necessary to avoid you following a religion that doesnt really fit you, and it will also avoid false preachers to manipulate you using phrases such as: "The bible says you should give all your money to the church".
And if you're not a christian, reading it is still good, the book has a good historical value aka it may help you explain your history, and also if you ever want to criticize someone for being something, you at least should know what this something is.
So I'd say it's no waste of time at all to read the bible; as a matter of fact is a time very well spent.