'Taste' in the Bible

And all the people came to cause David to eat bread while it was yet day; but David swore, saying, So do God to me, and more also, if I taste bread or aught else till the sun be down!

I am this day eighty years old: can I discern between good and bad? can thy servant taste what I eat and what I drink? can I hear any more the voice of singing men and singing women? and why should thy servant be yet a burden to my lord the king?