How to argue against this claim

[downbeatplumb]

Hi All,

So Obviously the Bible and god ways are full of evil deeds, and EVIL agenda
Slaves, murders and much more

Some Religious person would say,
Yeah but think of a child that sees a doctor cutting a man legs to save his life.
So like us the child lack of understanding the big picture.

Please give smart way to explain this comparison

Thanks

Before the development of the modern scientific approach Doctors would regularly cut into people for reasons not unlike religious reasons.
Now days the reasons for a Doctor cutting into a person would be supported by mountains of evidence. So tell the child the disease and point them in the direction of google.