Another resource we recommended to our Sunday School Parenting Class was this Picture Bible. Amazon says the reading level is for ages 9-12 but the pictures are stimulating enough to capture our 3 year old's attention.
Here are some other things we like about it:
-comic book format
-each story has a gripping ending so both parent and child wants to know what's next
The many stories of killing in the Old Testament are not omitted.