This passage occurs in the RCL Advent Season, most recently December 2016.
Summary: Luke is such a gifted writer that the preacher need not do much more than slow down and help people hear what he writes. I have focused on joy. In Luke's Gospel, joy is associated with the Jesus and communal worship. The Bible pushes this further and connects joy with suffering; if that seems an unfair stretch for this passage, Mary is certainly joyful amid great uncertainty, political oppression if not also family instability.
εσκριτησεν ("stir with joy", from σκριταω 1:41,44). In the New Testament, this word appears only in Luke. The Hebrew word that LXX translators translated as σκριταω has fascinating imagery, including the movement of cattle released from a stall. There is something uncontrollable about this type of movement. In Ancient Greek it would refer to the movement of wind gusts. (Alas, I couldn't come up with something concrete to tie together Spirit and joy here based on this word!) John has an uncontrollable joy in encountering Jesus.
2014 additional note: When I think of this word now, I think of my own daughter skipping home from school in her excitement about the day.
αγαλλιασει ("extreme joy", 1:44; as a verb in 1:47) This word means a great joy that often results in body movement. It appears in other key places in the Bible both as a noun and verb
Psalm 51: Restore to me the joy of your salvation.
Psalm 100:2 Worship the Lord with gladness, come into his presence with singing
Luke 1:47 My spirit rejoices in God my savior
Acts 2:46 The original worshiping community
Matthew 5:12 (Beatitutdes) Rejoice when they mistreat you...they did the same to the prophets.
(1 Peter also associates this word with faith in the midst of suffering and trials.)
χαρα ("joy"; not in this section!) Okay, okay, the word joy is not in this section. But joy shows up a lot in Luke
1:14: Joy at birth of John
2: Joy in the news of angels to the shepherds
15:10 and 7: Joy at a repentant sinner.
24:41 Joy of the disciples at the resurrection
24:52 The disciples end Luke's Gospel by worshiping in joy
Grammar: A hidden resurrection (Luke 1:37-38)
In many cases, it is impossible to translate word for word, not only because of meaning but also syntax. English translators are (almost) forced to hide a resurrection that happens in Mary.
Mary has just heard the Word of the Lord and responded in faithful obedience (1:37-38). The translators make it look like there is a new paragraph: "In those days..." where the Greek connects Mary's faith to the next move. It reads literally, "Raised up, Mary, in those days went." In fact the word for rise/rose is actually αναστατις, which means even "resurrection."
So, a nice Lutheran translation would be:
"May it be according to your word." Raised up to new life, Mary went to Elizabeth...
To put it simply, Luke subtly reinforces the notion that the Word of the Lord produces resurrection.