'Burden' in the Bible

The king replied to Absalom, “No, my son, we should not all go, or we would be a burden to you.” Although Absalom urged him, he wasn’t willing to go, though he did bless him.

David said to him, “If you go away with me, you’ll be a burden to me,

I’m now 80 years old. Can I discern what is pleasant and what is not? Can your servant taste what he eats or drinks? Can I still hear the voice of male and female singers? Why should your servant be an added burden to my lord the king?