You have referenced a non-Biblical text, 11Q13 is written in Hebrew however not considered a Biblical manuscript. This puts it in the catagory of comentary for me. While it may contain names or figures that are found in the Bible, it is not considered part of the Hebrew Bible by the Rabbi's and scholars.
In other words, it does not sway me away from the Bible and what the Bible speaks of. God can and does according to His will, as described in the Bible. I'm not trying to be blunt about it, but I believe that the Bible is the only inspired word of God and that is what I must rely upon.