Picasso also said, "God is really only another artist. He invented the giraffe, the elephant and the cat. He has no real style, He just goes on trying other things". I can see how someone with a limited, but contained, mind could think Picasso was brilliant.
If the Bible is a series of lies meant to express the spiritual truth, then it is a contradiction to faith. Fortunately, we who have a broader understanding of who is God do not find it necessary to assign human limitations to Him in order to feel better about ourselves.
I don't find anything in the Bible unbelievable. If I did, it would be useless to me.