Rest in peace (acronym R.I.P.) in the second person singular, or “Requiescite in pace” in the second person plural. In the common phrase "Requiescat in pace" the "-at" ending is appropriate because the verb is a third-person singular present active subjunctive used in a hortative sense: "May he/she rest in peace." The phrase was first found on tombstones some time before the fifth century. It became ubiquitous on the tombs of Christians in the 18th century, and for High Church Anglicans, Methodists, as well as Roman Catholics in particular, it was a prayerful request that their soul should find peace in the afterlife.
English articles cases a noun, or more generally a noun phrase, must be "completed" with a determiner to clarify what the referent of the noun phrase is. The most common determiners are the articles "the" and "a(n)", which specify the presence or absence of definiteness of the noun. Other possible determiners include words like "this", "my", "each" and "many" – see English determiners. There are also cases where no determiner is required, as in the sentence "John likes fast cars". The definite article "the" is used when the referent of the noun phrase is assumed to be unique or known from the