Fifteen years — We have not an instance of any other, who was told before — hand just how long, he should live. God has wisely kept us at uncertainties, that we may be always ready.
Related Commentaries of 2 Kings 20:6
2 Kings 20:6
6 And I will add unto thy days fifteen years; and I will deliver thee and this city out of the hand of the king of Assyria; and I will defend this city for mine own sake, and for my servant David's sake.