'Tax gatherer' in the Bible

On going outside after this he noticed a taxgatherer called Levi sitting at the tax-office and said to him, "Follow me";

"Two men went up to pray in the temple; one was a Pharisee and the other was a taxgatherer.

The Pharisee stood up and prayed by himself as follows; 'I thank thee, O God, I am not like the rest of men, thieves, rogues, and immoral, or even like yon taxgatherer.

But the taxgatherer stood far away and would not lift even his eyes to heaven, but beat his breast, saying, 'O God, have mercy on me for my sins!'