A man named Matthew collected money from other people in his job.  While he was sitting at his desk, Jesus came by and said "Follow me."  Matthew got up right away and always followed Jesus from that time on.  Later, lots of other people thought that Jesus should not be eating dinner at Matthew's house because Matthew was a sinner.  Jesus said that only those who are sick need a doctor, not people who are well.  And only the sinners, like Matthew, need to be forgiven by God.   Matthew  later wrote the Gospel according to St. Matthew in the New Testament of the Holy Bible.