From the article :
The sermon was the third and final part of a sermon series titled "Aftermath" that was centered on reaching out to individuals who lost their faith because of something in the Bible, particularly the Old Testament, which he admitted was "violent" and "disturbing."
Stanley explained in the sermon that while he believes the Old Testament is "divinely inspired," it is only the "back story for the main story" and should not be "the go-to source regarding any behavior in the church."
I understand that. It can be very difficult to figure out what was God approved and what was not in the Old Testament, especially considering that Satan did things that were then ascribed to God. This includes the doings of various people who believed in and followed God in general, as well. I've heard a lot of criticism of the Bible based on assumptions that such and such statements or actions, usually in the OT, are God approved.
If someone reads Judges 11 and then loses faith because Jephthah sacrificed a random member of his own household - not even in anger or frustration but in "devotion" to God, then that is of course a horrible thing.