What does 2 Kings 1:15 mean?

Ahaziah sent a third captain with fifty men. This captain went up, fell on his knees in front of Elijah, and begged, 'Man of God, please let my life and the lives of these fifty men count for something to you.' 2 Kings 1:15 - Modern Text Bible

(The third captain approaches with humility and respect, recognizing Elijah's authority and pleading for mercy.)