'Served' in the Bible

"Please, Lord. Remember how I have served you faithfully and with wholehearted devotion, and how I have carried out your will." Then Hezekiah wept bitterly.

On the seventh day of the fifth month, in the nineteenth year of King Nebuchadnezzar of Babylon, Nebuzaradan, the captain of the royal guard who served the king of Babylon, arrived in Jerusalem.