Lucius Caecilius Firmianus Lactantius

In his own words on 1 Samuel

• 1 Samuel 16:1

  The Jews had before been directed to compose a sacred oil, with which those who were called to the priesthood or to the kingdom might be anointed. And as now the robe of purple is a sign of the assumption of royal dignity among the Romans, so with them the anointing with the holy oil conferred the title and power of king. But since the ancient Greeks used the word chriesthai to express the art of anointing, which they now express by anleiphesthai, as the verse of Homer shows, "But the attendants washed, and anointed them with oil"; on this account we call him Christ, that is, the Anointed, who in Hebrew is called the Messiah.

  EPITOME OF THE DIVINE INSTITUTES 4.7