Why am I so favored, that the mother of my Lord should come to me?
This title has a double meaning. It is the word the Septuagint used to translate the Hebrew "Yahweh," and the New Testament writers used it the same way. As such, it implies deity. It also means "master" in the sense of a superior person, specifically the Messiah. This usage does not necessarily imply that the person using it believed that Jesus was God. Elizabeth apparently meant that Jesus was the Messiah at least. Luke evidently used the term "Lord" frequently because for Greek readers "Christ" or "Messiah" had little meaning. The pagan Gentiles referred to Caesar as "Lord" Caesar, meaning that he was their divine sovereign. "Lord" had the same connotation for Luke’s original readers. Jesus is the divine sovereign for Christians.