'Leader' in the Bible

So the king sent out 50 men, along with their leader. The leader approached Elijah, who was sitting at the top of a hill. He ordered Elijah, "Hey, man of God! The king orders you to come down!"

Elijah responded to the leader who was in charge of the 50 soldiers, "So I'm a man of God, am I? If so, may fire fall from heaven and devour you and your 50 soldiers"" Just then, fire fell from heaven and devoured that leader and his 50 soldiers.

Later the king tried again he sent another company of 50 soldiers, along with their leader, who ordered Elijah, "Hey, man of God! This is what the king orders: "Come down!'"

Elijah responded to the leader and to his entire company, "So I'm a man of God, am I? If so, may fire fall from heaven and devour you and your 50 soldiers"" Just then, fire fell from heaven and devoured him and his 50 soldiers.

Then the king tried yet again! The king sent a third company of 50 soldiers along with their leader. The third leader went up the hill, approached Elijah, fell on his knees in front of him, and begged him, "Hey, man of God, please treat my life and the lives of these servants of yours as precious!

“Go back and tell Hezekiah, the leader of My people, ‘This is what the Lord God of your ancestor David says: I have heard your prayer; I have seen your tears. Look, I will heal you. On the third day from now you will go up to the Lord’s temple.