Christian liturgy is a pattern for worship used (whether recommended or prescribed) by a Christian congregation or denomination on a regular basis. Although the term liturgy is used to mean public worship in general, the Byzantine Rite uses the term "Divine liturgy" to denote the Eucharistic service.

Different Christian traditions have employed different rites:

The liturgy of the many denominations ultimately derives from that of the western Catholic church, however most "post-Protestant" denominations (e.g. evangelicals, etc.) claim to have no need for liturgy, or else insist that their manner of worship is a full return to the days of the apostles. The descriptions that follow explain the liturgies of those traditional, mainline denominations that fully acknowledge the history of their origins and retain an emphasis on liturgy as an important part of their worship style.

The Greek is a fictional character on the HBO drama The Wire, played by actor Bill Raymond. The Greek is the head of an international criminal organization involved in narcotics and human trafficking. The Greek is a mysterious figure involved in numerous criminal activities. His given name is never mentioned on the show, and though he is known only as "The Greek", he has stated (in the episode Port in a Storm) that he is not actually Greek. A quiet and unassuming man, the Greek prefers to keep a low profile, operating all of his business through his lieutenant Spiros "Vondas" Vondopoulos. His smuggling organization operated from a small diner in Baltimore for years, and while Vondas would conduct business the Greek would listen in quietly at the counter. Nick Sobotka, upon seeing the Greek identify himself, was amazed that the shadowy figure had been in plain sight the entire time.

Despite his calm appearance, the Greek is cunning and ruthless, and only interested in facts that make him more money. Series creator David Simon has said that The Greek is an embodiment of raw unencumbered capitalism. Anyone interfering in this process is eliminated immediately, and he prefers to leave victims headless and handless to hinder identification.