Luke 5:27-29

Luke 5:27-29

[27] And  after  he went forth,  and  saw  a publican,  named  Levi,  sitting  at  the receipt of custom:  and  he said  unto him,  Follow  [28] And  he left  rose up,  and followed  him.  [29] And  Levi  made  him  a great  feast  in  his own  house:  and  a great  company  of publicans  and  of others  that  with  them. 

What is the context of Luke 5:27-29?