'Age' in the Bible

Now King David was old, advanced in age; and they covered him with clothes, but he could not keep warm.

Jeroboam’s wife did so, and arose and went to Shiloh, and came to the house of Ahijah. Now Ahijah could not see, for his eyes were dim because of his age.

Now the rest of all the acts of Asa and all his might and all that he did and the cities which he built, are they not written in the Book of the Chronicles of the Kings of Judah? But in the time of his old age he was diseased in his feet.