Hi Thomas
The Bible does not codone "human" sacrafice.
The passage that you have quote does not speak of killing his daughter but instead he has sacrificed his lineage
That's right she knew no man and did not have children.
Please re-read 11:38 and 39
OK
Now would be the time for you to quote somebody in the Bible sacraficing his only son. Now I'm not going to give you the passage and numbers let alone the chapter because I want you to go and search the apologetic site you took this question from