'Taste' in the Bible

Then all the people came to persuade David to eat bread while it was still day; but David vowed, saying, “May God do so to me, and more also, if I taste bread or anything else before the sun goes down.”

I am now eighty years old. Can I distinguish between good and bad? Or can your servant taste what I eat or what I drink? Or can I hear anymore the voice of singing men and women? Why then should your servant be an added burden to my lord the king?