The Paschal greeting is an Easter custom among Eastern Orthodox, Oriental Orthodox and Eastern Catholic Christians, as well as among several Catholic and Protestant Christians. Instead of "hello" or its equivalent, one is to greet another person with "Christ is Risen!", and the response is "Truly, He is Risen" (compare Matthew 27:64, Matthew 28:6-7, Mark 16:6, Luke 24:6, Luke 24:34).

In some cultures, e.g., in Russia, it is also customary to exchange a triple kiss on the alternating cheeks after the greeting.

It is not uncommon for Orthodox Christians to compile lists of the greeting as it is used around the world, as an act of Orthodox unity across languages and cultures.

Similar responses are also used in the liturgies of other Christian churches, but not so much as general greetings.

From Wikipedia under the GNU Free Documentation License
Tue Jun 16 06:58:41 2009