It's not that you necessarily know more about the Bible, it's that some believers like to conveniently forget about the parts that are too progressive (or conservative) for their taste.
Have a hard-on for war with Iran/Muzzies? Jesus said "turn the other cheek".
LGBT? Several passages within the Bible clearly abhor it.
Staunch capitalist? Jesus told his followers to sell everything and give the money to the poor.
Prefer socialism? Jesus told a guy jilted out of his "share" of the family inheritance to basically get bent.
My hot take? Just salt and burn all religious texts. If anything, they were written by agents of the Devil to divide the world.