We might think the theme has to do with the conception and birth of Christ, but it is not. Wait a minute, isn’t the story about the baby Jesus who was born to be a Savior? Yes, but the theme is not about the birth. The central theme of verses Mt. 1:18-25 can be found by looking at the chiastic structure.
Chiastic structure is a literary device using symmetrical patterns in ancient writing to point the reader to what is important. You might say it was similar to putting the important point in bold print. Besides, the Scriptures weren’t organized in verses in ancient times. In other words, chiastic structure is like a hamburger. The top and bottom layers contain the bun. Layered inside is the lettuce, onions, pickles, tomatoes, cheese, and condiments on either side of the bun. The innermost part contains the meat or the theme of the sandwich, called the central axis or climax.
CHIASTIC STRUCTURE OF MATTHEW 1:18-25
So, looking at the chiastic structure of this passage in Matthew, the outer layers address the sexual purity, conception and birth, and divorce and marriage. Layered inside is the Lord’s name as Jesus or Emmanuel, with the interpretation. The innermost layer contains the theme: “And this all happened that it might be fulfilled what was said from the Lord by the prophet.”
Because as our culture is focused on the introduction and ending of this passage, we miss the point. Remember, Matthew was written in ancient times specifically to the Jews, so he uses chiastic structure to point to the theme, which is about the fulfilling of prophecy. In fact, Matthew doesn’t need to name the prophet, because the Jews would have known the reference was from Isaiah. So, why is Mt 1:22 so important? Because Matthew is saying that Scripture is being fulfilled, a very important point for a Jew to consider. Truth must be validated.
Once we understand that the point of this passage concerns the fulfillment of prophecy, we should be able to perceive the rest of the passage in its proper perspective of supporting the chiastic theme.
Copyright by Beth Piepenburg, 2013. All rights reserved.
 For basic information about chiasms, see http://bible-discernments.com/joshua/whatisachiasm.html.