Paul, before he was converted was a man who had a zeal to kill those who confessed Jesus Christ as their Lord and Saviour. After he was saved he had a zeal to tell both the Jews and the Gentiles about Jesus!
Where does your zeal lie today? Do you have a zeal to tell others about Christ or does your zeal lie in your work, pleasure, family or friends? Work, pleasure, family and friends are all good things, but none of them should take first place before the Lord!